- What is Pardoned and Overlooked of Najasah:1- Trace of najasah:It is wajib to remove the physical najis substance, and the smell and colour are overlooked if it is difficult to remove them, and this is by agreement of the four schools of jurisprudence.
2- Small amounts of najasah:All small amounts of najasah are pardoned, and this is the position of the Hanafis,
[102] But the major najasah is pardoned only if it is less than a dirham in size for them. an opinion among the Hanbalis, the position of some of the Salaf, and the choice of Ibn Taymiyyah and Ibn `Uthaymin.
3- Standard according to which a little najasah is considered so:The standard that dictates a little najasah that can be overlooked is cultural norms. This is what the average person would consider minor and non-problematic. This is the position of the Shafi`is, Hanbalis, Ibn Taymiyyah, Ibn `Uthaymin, and the Permanent Committee.
Secondly: Defining alteration (Istihalah)
Linguistically: It is when a thing changes from its nature.
Technically: It is the changing of a najis substance by itself or through some means.
- Purification of a najis substance through alteration:
If the najis substance alters to another substance, [103] Examples of this are dung that turns to ashes after burning, and najis oil becoming soap, the mud of sewers when it dries and its effects disappear, and a najasah that is buried in the earth and its effects disappearing by the passing of time. it has become pure through alteration. This is the position of the Hanafis, Malikis, a narration from Ahmad, the choice of Ibn Hazm, Ibn Taymiyyah, Ibn al-Qayyim, the verdict of the Permanent Committee, and the view of the majority of scholars.
- Ruling of alcohol if it turns to vinegar naturally:
Alcohol becomes pure if it naturally changes into vinegar, for those who view it as najis originally. This is by agreement of the four schools of jurisprudence.
- Ruling of alcohol if it turns to vinegar artificially:
Alcohol does not become pure if it is artificially changed into vinegar, for those who view it as najis originally. It would be thence haram to use. This is the position of the Shafi`is, Hanbalis, the most common opinion narrated from Malik, the position of some of the Salaf, chosen by Ibn Taymiyyah and Ibn al-Qayyim, and it is the verdict of the Permanent Committee on the matter, as well as it being the view of the majority of scholars.
- Ruling of alcohol if it turns to vinegar by its transportation:
Scholars have differed over whether alcohol becomes pure after it being moved, as in from under shade to the sun or vice versa according to many views, the strongest of which are two:
First: If alcohol turns into vinegar due to moving from shade to sunlight or the opposite, then it becomes pure. This is the position of the majority: Hanafis, Malikis, and the most correct opinion among Shafi`is.
Second: If alcohol turns into vinegar due to moving from shade to sunlight or the opposite, then it does not become pure. This is the position of the Hanbalis and Ibn Taymiyyah.