The First Fatwā Collections: Baqī ibn Makhlad and the Compilers of the Third Century
Answer
Then, in the third century, the writing of separate, independent works began — on the ḥadīths of the Messenger ﷺ on the one hand, and on the fatwās of the Companions ﵃ and the Tābiʿūn on the other — and fatwās came to be gathered as a genre of fiqh in their own right.
Source: Fatawa Mahmudiyya
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