Zayd ibn Wahb al-Juhani reported that he was in the army led by ‘Ali (may Allah be pleased with him) that set out to fight the Kharijites. ‘Ali (may Allah be pleased with him) said: "O people, I heard the Messenger of Allah (may Allah's peace and blessings be upon him) say: 'There would arise within my Ummah a people who would recite the Qur’an, and your recitation would be nothing compared to their recitation, your prayer would be nothing compared to their prayer, and your fast would be nothing compared to their fast. They would recite the Qur’an thinking that it supports them, whereas it is against them. Their prayer does not get beyond their collarbones. They would pass through Islam as an arrow passes through the prey. If the army that is to encounter them were to know what had been decreed for them by the tongue of their Prophet (may Allah's peace and blessings be upon him), they would completely rely upon that and cease to work. The sign of this is that there would be among them a man with an upper arm and without an arm, and the head of his upper arm would be like the nipple of the breast on which there would be some white hairs.' So, will you go to Mu‘āwiyah and the people of the Levant and leave them behind among your children and your property?! By Allah, I hope they are those people, for they have shed inviolable blood and raided the animals of the people. So, go forth in the name of Allah." Salamah ibn Kuhayl said: Zayd ibn Wahb made me alight at a place, till we crossed a bridge. When we encountered them - and ‘Abdullāh ibn Wahb ar-Rāsibi was the leader of the Kharijites on that day - he said to them: "Throw the spears and draw out your swords from their sheaths, for I fear that they would appeal to you as they appealed to you on the day of Harūrā'." They went back and threw their spears and drew out their swords, and people fought against them with their spears and they were killed on top of one another. Only two men were killed from among the people on that day. Then, ‘Ali (Allah be pleased with him) said: "Search for the Mukhdaj (the maimed one) among them." They searched but did not find him. So, ‘Ali (may Allah be pleased with him) himself stood up till he came upon people who had been killed on top of one another. He said: "Move them away from one another." So, they found him near the ground. Thereupon, he proclaimed Takbīr and then said: "Allah told the truth, and His Messenger conveyed it." He said: Then, ‘Abīdah as-Salmāni stood before him and said: "O Commander of the Believers, by Allah, other than Whom there is no god, did you hear this Hadīth from the Messenger of Allah (may Allah's peace and blessings be upon him)?" He said: "Yes, by Allah, other than Whom there is no god." He repeated the request for an oath from him three times, and he swore each time..
Commentary :
The Prophet (may Allah's peace and blessings be upon him) warned us against religious innovations and extremism, for it leads to the corruption of societies. Extremism, along with the lack of proper understanding of the religion, may result in considering the Muslim communities as people of religious innovations and Kufr (disbelief) and lead to revolt against the rulers unjustly.
In this Hadīth, the Tābi‘i Zayd ibn Wahb al-Juhani relates that he was with ‘Ali ibn Abi Tālib (may Allah be pleased with him) in the army that marched toward the Kharijites. This happened in 38 A.H., in the battle of Nahrawān, located nearly 35km southeast of Baghdad, Iraq. They were those who criticized ‘Ali (may Allah be pleased with him) for the arbitration over his fighting against Mu‘āwiyah (may Allah be pleased with him), and they fought him and declared the Muslims as disbelievers and regarded the shedding of their blood as lawful. ‘Ali (may Allah be pleased with him) addressed his army to make them firm and urge them to fight and display patience in doing so. He informed that he heard the Prophet (may Allah's peace and blessings be upon him) point out some traits of the Kharijites, mentioning that they would be a people within the Muslim Ummah, and they would "recite the Qur'an," i.e., recite it a lot. They would also perform prayer and observe fast often, to the extent that if people compared their condition to the condition of others, they would regard the worship of others as nothing next to them. "They would recite the Qur'an thinking that it supports them", i.e., it provides an argument for them in proving their claims, whereas this is not the case in reality; instead, it serves as an argument against them with Allah Almighty. In the Two Sahīh Collections, in a Hadīth reported by Abu Sa‘īd al-Khudri (may Allah be pleased with him): "It does not get beyond their collarbones." Likewise, their prayer does not get beyond their collarbones. Prayer here probably refers to the recitation in prayer. The collarbone is the bone that extends from the neck cavity to the shoulder. They do not understand the Qur’an, draw benefit from its recitation, ponder its verses, or reflect upon its meanings. So, they do not reach their hearts through reflection and Khushū‘ (humility and focus) and do not ascend to heaven. Therefore, they obtain no reward for them. "They would pass through" i.e., they would depart from Islam quickly and not get attached to anything in it, just as an arrow passes through prey, i.e., like a powerful and fast arrow that penetrates the target and passes through prey, due to its power and speed, entering from one side and coming out from the opposite one; and it leaves no trace of blood or flesh. Then, they would not go back to the religion, as the arrow does not go back to its place in the bow.
Then, ‘Ali ibn Abi Tālib (may Allah be pleased with him) states that if the army that would kill and defeat them were to know the reward and recompense that their Prophet (may Allah's peace and blessings be upon him) informed them about and determined for them, they would abandon work and solely rely upon this glad tiding which was given to them for killing the Kharijites.
The distinctive mark of those Kharijites is "that there would be among them a man with an upper arm", which extends from the shoulder to the elbow, "and without an arm", which extends from the elbow to the hand. And the head of his upper arm would be like "the nipple of the breast", and there would also be some white hairs on the top of his upper arm.
Then, ‘Ali ibn Abi Tālib (may Allah be pleased with him) expressed criticism of the army in the form of questioning: Do you want to go to Mu‘āwiyah and the people of the Levant and fight them and leave those Kharijites behind to stay among your women and children and loot your property?! The meaning: This is not proper and should not happen. By this, he intended to urge them to fight the Kharijites first before marching toward Mu‘āwiyah and the people of the Levant.
Then, ‘Ali (may Allah be pleased with him) swore, saying: "By Allah, I hope they are those people" who are amongst us, revolted against us, and departed from obedience to us, "the people" whom the Prophet (may Allah's peace and blessings be upon him) described to us. Indeed, they went to extremes in shedding the blood of Muslims, and it is blood whose shedding is forbidden. They killed 'Abdullāh ibn Khabbāb and the mother of his child. "and they raided the animals of the people", i.e., they raided people's property and stole their grazing livestock. Then, ‘Ali (may Allah be pleased with him) said: "So, go forth in the name of Allah", i.e., with the blessing of the name of Allah, seek help from Him and put your trust in Him. This indicates that actions should begin with the mention of Allah.
Salamah ibn Kuhayl al-Hadrami al-Kūfi - one of the Hadīth narrators - informs that the Tābi‘i Zayd ibn Wahb mentioned to him the locations of their travel to fight the Kharijites, one by one, until they reached the bridge at which the fighting took place - the bridge of Dizjān. This is also mentioned in As-Sunan Al-Kubra Collection of An-Nasā’i. A bridge is a structure built over water for crossing on it. This is the bridge of Nahrawān, where the Kharijites gathered.
Zayd ibn Wahb related that when the two armies encountered each other for fighting, the leader of the Kharijites on that day was ‘Abdullāh ibn Wahb ar-Rāsibi, who said to the Kharijites: Throw the spears and draw out your swords from their sheaths. He wanted the two armies to start fighting. Thus, there would be no possible alternative to fighting, such as a truce or appeal, which means that they would ask and adjure them by Allah, and this might cause some of his companions to leave him, and, as a result, his army would become weaker. Confrontation with spears puts the two armies at a distance from each other, and this carries the possibility that some of them may feel pity upon seeing the blood and call for the cessation of fighting. On the other hand, fighting with the swords breaks out quickly and ends with defeating one of the two armies. Ibn Wahb hoped that he would be victorious in this battle. "as they appealed to you on the day of Harūrā’." This is a village near Kufa, after which a sect of the Khrijites was named, as their first gathering took place there, "the day" here refers to the day in which the Kharijites gathered, numbering eight thousand - and a different number was also mentioned - and they alighted at Harūrā’. Their leaders were ‘Abdullāh ibn al-Kawwā’ al-Yashkuri and Shabath at-Tamīmi. ‘Ali ibn Abi Tālib (may Allah be pleased with him) sent his cousin ‘Abdullāh ibn ‘Abbās (may Allah be pleased with him) to them. He debated with them, and as a result, many of them came back with him. Then, ‘Ali went out to them, appealed to them, and engaged in a discussion with them. Consequently, they obeyed him and entered Kufa along with him.
When the Kharijites listened to ‘Abdullāh ibn Wahb, they obeyed him and "threw their spears" i.e. they threw them away and engaged in fighting against the army of ‘Ali (may Allah be pleased with him) with swords. So, this opinion led to victory for the Muslims and ‘Ali's army, the preservation of their blood, and their empowerment. "and people fought against them with their spears" i.e., the companions of ‘Ali (may Allah be pleased with him) stabbed them with their spears like trees. The Arabic text uses a verb derived from 'shajar', which means trees. So, the companions of ‘Ali (may Allah be pleased with him) threw the spears at them before they could reach them. Then, they engaged in battle with them and killed so many of them; only two men were killed on the side of ‘Ali (may Allah be pleased with him). His words "they were killed on top of one another" mean that they were piled upon one another due to the large number of them who were killed, forming heaps.
Then, after the end of the battle, ‘Ali (may Allah be pleased with him) ordered them to search for "the Mukhdaj" man, i.e., his body is incomplete. This is the man described at the beginning of the Hadīth. They searched for him but could not find him. So, 'Ali (may Allah be pleased with him) himself rose and moved to a heap of dead bodies from the Kharijites. He ordered that they be separated from one another, and they found underneath them the man he was looking for dead. Thereupon, 'Ali (may Allah be pleased with him) proclaimed Takbīr in wonder at seeing the Mukhdaj man with the description given by the Prophet (may Allah's peace and blessings be upon him). Then, he said after the Takbīr: "Allah", Exalted be He, "told the truth" in what He revealed to His Prophet; "and His Messenger conveyed" His message to us and to the people, in truth.
Then, Zayd ibn Wahb al-Juhani informed that the Tābi‘i ‘Abīdah as-Salmāni called out to ‘Ali (may Allah be pleased with him): "O Commander of the Believers", and he adjured him by Allah, other than Whom there is no god, to tell him whether he heard this Hadīth from the Messenger of Allah (may Allah's peace and blessings be upon him). In response, ‘Ali (may Allah be pleased with him) swore, saying: "Yes, by Allah, other than Whom there is no god" i.e., yes, I heard it from the Messenger of Allah (may Allah's peace and blessings be upon him). "He repeated the request for an oath from him three times". He asked him to swear to let this be heard by the people present and affirm that to them, and in order to reveal to them the miracle informed by the Messenger of Allah (may Allah's peace and blessings be upon him) and show them that ‘Ali and his Companions are the worthier among the two groups in claiming the truth, and that they are rightful in fighting them.
The Hadīth points to the danger of ignorance in religion and dogmatic thinking.
It mentions the great reward of killing the Kharijites.
It warns against extremism in religion and affectation in worship.
Those who revolt against the just rulers should be fought against.
The Hadīth mentions some traits of the Kharijites.
It shows the merit of ‘Ali ibn Abi Tālib (may Allah be pleased with him).
An oath may be requested for verifying something unfamiliar, so as to affirm it to those who hear about it..