(Imām Bukhārī narrates): Mu'adh bin Fadalah narrated to us, he said: Hisham narrated to us (H), and Abu Nu'aim narrated to us, from Hisham, from Qatadah, from Al-Hasan, from Abi Rafi', from Hazrat Abu Hurairah (may Allāh be pleased with him), from the Prophet ﷺ, he said:

When a man sits between the four parts of a woman, then exhausts her (has intercourse with her), then indeed ghusl becomes obligatory upon him.

Hisham has been followed by Amr bin Marzuq, from Shu'bah, in the like of this hadith, and Musa said: Aban narrated to us, he said: Qatadah narrated to us, he said: Al-Hasan informed us the like of this hadith.