5.1. Where the divinely-revealed Books agree
The divinely-revealed Books agree on several matters, including the following [36] See: ‘Umar al-Ashqar: al-Rusul wa’l-Risalat, p.235; al-Hamd: Rasa’il fi’l-‘Aqidah, p. 287; Ibn Taymiyah: Majmu‘ al-Fatawa, 20/6; Ibn Taymiyah: al-Jawab al-Sahih, 1/64, 2/438; Majmu‘ Rasa’il Ibn Rajab, 2/557. :

5.1.1. The same source
The divinely-revealed Books come from the same source, for they were all sent down from Allah, may He be exalted. Allah, may He be exalted, says, "Alif, Lam, Meem. Allah - there is no god worthy of worship except Him, the Ever-Living, the Sustainer of existence. He has sent down upon you, O Muhammad, the Book in truth, confirming what was before it. And He revealed the Torah and the Gospel. Before, as guidance for the people. And He revealed the Qur’an," (Al ‘Imraan 3:1-4) Ibn Jarir said: ‘Confirming what was before it means that that Qur’an confirms what came before it of the Books of Allah that He sent down to His Prophets and Messengers, and confirms the message brought by the Messengers of Allah from Him, because the One Who sent down all of that is one and the same.’ [37] Tafsir Ibn Jarir, 5/180.

5.1.2. The same purpose
The purpose of the divinely-revealed Books is the same: all of them called people to worship Allah alone, with no partner or associate, and called them to follow the religion of Islam. Allah, may He be exalted, says, "And We certainly sent into every nation a messenger, saying, “Worship Allah and shun false gods.” (al-Nahl 16:36) Ibn Taymiyah said, ‘Allah, may He be exalted, tells us in His Book that Islam is the religion of all the prophets such as Nuh, Ibrahim and Ya‘qub and their followers, up to the Hawariyyun disciples of ‘Isa. This is what is meant by His words, "And whoever desires other than Islam as religion - never will it be accepted from him." (Al ‘Imran 3:85)
"Indeed, the religion in the sight of Allah is Islam." (Al ‘Imran 3:19) This is applicable at all times and in all places.’ [38] Daqa’iq al-Tafsir, 1/337.

5.1.3. Issues of creed (‘aqidah)
The divinely-revealed Books contained and were agreed on issues of creed. That includes belief in Allah and His Messengers, the resurrection, Paradise and Hell, and other matters. These issues come under the heading of facts that cannot be abrogated in any Books sent by Allah, may He be glorified and exalted. Ibn Taymiyah said, ‘The Messengers are agreed on the basic principles of creed and basic practical issues. Basic principles of creed include believing in Allah, in His Messengers, and in the Last Day.’ [39] Majmu‘ al-Fatawa, 15/159.

5.1.4. General principles
The divinely-revealed Books agree on some basic principles that all humanity should understand and follow. They include:
(1) The principle of reward and punishment. This means that the individual will be brought to account for his deeds and will be punished for his sins, but he will not be brought to account for the sins of others. And he will be rewarded for his efforts, but not for the efforts of others. Allah, may He be exalted, says, "Or has he not been informed of what was in the scriptures of Moses.
And of Abraham, who fulfilled his obligations, That no bearer of burdens will bear the burden of another. And that there is not for man except that good for which he strives. And that his effort is going to be seen. Then he will be recompensed for it with the fullest recompense." (al-Najm 53:36-41)
(2) Urging people to strive to purify their souls, and affirmation that true success can only be attained by purifying one’s soul through obeying Allah and devoting worship to Him alone, and giving precedence to the hereafter over this world. Allah, may He be exalted, says, "He has certainly succeeded who purifies himself. And mentions the name of his Lord and prays.
But you prefer the worldly life. Whilst the Hereafter is better and more lasting. Indeed, this is in the former scriptures. The scriptures of Abraham and Moses." (al-A‘la 87:14-19)

5.1.5. Justice and fairness
All the Prophets (peace be upon them) promoted justice and fairness. Allah, may He be exalted, says, "We have already sent Our messengers with clear evidences and sent down with them the Scripture and the balance that the people may maintain their affairs in justice." (al-Hadid 57:25) Ibn Jarir said, ‘Here Allah, may He be exalted, states that He sent His Messengers with detailed evidence and proof, and He sent down with them the Scriptures with rulings, laws and justice. The words that the people may maintain their affairs in justice mean: so that people will treat one another justly.’ [40] Tafsir Ibn Jarir, 22/424.

5.1.6. Fighting corruption and deviation
This is something on which all the messages are agreed, whether that is corruption in beliefs or morals and manners, or deviation from sound human nature, transgressing against other people, cheating in weights and measures, or anything else. Yusuf denounced polytheism. Allah, may He be exalted, tells us that he said, "… Indeed, I have left the religion of a people who do not believe in Allah, and they, in the Hereafter, are disbelievers. And I have followed the religion of my fathers, Abraham, Isaac and Jacob. And it was not for us to associate anything with Allah. That is from the favor of Allah upon us and upon the people, but most of the people are not grateful. O my two companions of prison, are separate lords better or Allah, the One, the Prevailing? You worship not besides Him except mere names you have named them, you and your fathers, for which Allah has sent down no authority. Legislation is not but for Allah. He has commanded that you worship not except Him. That is the correct religion, but most of the people do not know." (Yusuf 12:37-40)

Lut (peace be upon him) denounced the immoral deed of homosexuality. Allah, may He be exalted, says, "And We had sent Lot when he said to his people, “Do you commit such immorality as no one has preceded you with from among the worlds? Indeed, you approach men with desire, instead of women. Rather, you are a transgressing people.” (al-A‘raf 7:80-81)

Shu‘ayb (peace be upon him) denounced his people for transgressing against people’s rights. Allah, may He be exalted, says, "And to the people of Madyan We sent their brother Shu'ayb. He said, “O my people, worship Allah; you have no deity other than Him. There has come to you clear evidence from your Lord. So fulfill the measure and weight and do not deprive people of their due and cause not corruption upon the earth after its reformation. That is better for you, if you should be believers.” (al-A‘raf 7:85)

5.1.7. Calling to good attitudes and manners
The divinely-revealed Books all called people to good attitudes and manners, such as forgiving the one who mistreated you, bearing annoyance with patience, speaking kindly, honouring parents, fulfilling promises, upholding ties of kinship, honouring guests, showing humility, showing compassion to the poor, and other good manners and attitudes. Ibn Taymiyah said, ‘The Messengers were all agreed on the basics of religion, namely the basics of creed and the basics of conduct. The basics of creed include belief in Allah and in His Messengers and the Last Day. The basics of conduct include the general rules referred to in al-An‘am, al-A‘raf and Surat Bani Isra’il (al-Isra’), such as the verses in which Allah, may He be exalted, says, "Say, “Come, I will recite what your Lord has prohibited to you. He commands that you not associate anything with Him, and to parents, good treatment, and do not kill your children out of poverty; We will provide for you and them. And do not approach immoralities - what is apparent of them and what is concealed. And do not kill the soul which Allah has forbidden to be killed except by legal right. This has He instructed you that you may use reason. And do not approach the orphan's property except in a way that is best until he reaches maturity. And give full measure and weight in justice. We do not charge any soul except with that within its capacity. And when you testify, be just, even if it concerns a near relative. And the covenant of Allah fulfill. This has He instructed you that you may remember. And, moreover, this is My path, which is straight, so follow it; and do not follow other ways, for you will be separated from His way. This has He instructed you that you may become righteous." (al-An‘am 6:151-153) And your Lord has decreed that you not worship except Him, and to parents, good treatment. Whether one or both of them reach old age while with you, say not to them so much as, “uff,” and do not repel them but speak to them a noble word. And lower to them the wing of humility out of mercy and say, “My Lord, have mercy upon them as they brought me up when I was small.” (al-Isra’ 17:23-24) "Say, O Muhammad, “My Lord has ordered justice and that you maintain yourselves in worship of Him at every place or time of prostration, and invoke Him, sincere to Him in religion.” (al-A‘raf 7:29) "Say, “My Lord has only forbidden immoralities - what is apparent of them and what is concealed - and sin, and oppression without right, and that you associate with Allah that for which He has not sent down authority, and that you say about Allah that which you do not know.” (al-A‘raf 7:33) The matters mentioned in these verses are part of the religious teachings on which all the systems of law are agreed, as is the case in most of the Makkan surahs, which focus on basic principles on which all the Messengers of Allah were agreed, because these surahs were addressed to people who did not believe in the message in the first place.’ [41] See: Majmu‘ al-Fatawa, 15/159.