Is the statement that the majority of scholars believe that an impure substance does not become pure through transformation correct, or do the majority of them hold the view of its purity, and that some have agreed with this, such as some Hanafis, Malikis, Shafi'is, and Hanbalis, in addition to Sheikh al-Islam Ibn Taymiyyah and the Zahiris? And is it obligatory to research imported creams and ask specialists about their ingredients to ensure their purity?

The questioner's statement: "The Shafi'is agreed with them concerning impurities" is a clear error. The Shafi'is do not consider anything impure to become pure through transformation (istiḥālah) except for wine when it turns into vinegar by itself, and the hide of a dead animal when it is tanned. The Hanafis, Malikis, and one narration from Ahmad hold that an inherently impure substance becomes pure through transformation, whereas the Shafi'is and Hanbalis hold that an inherently impure substance does not become pure through transformation, with the exception of wine and the hide of a dead animal. The view that impurities become pure through transformation is a strong and valid opinion championed by Shaykh al-Islam. There is no need to ask about the composite materials in creams and other similar items, as the original state of things is purity.