(85) باب فِي الإِكْسَالِ
Abu Hurairah reported the Prophet (May peace be upon him) as saying :
when anyone sits between the four parts of a woman and the parts (of the male and female) which are circumscised join together, then bath becomes obligatory.
Reference: Sunan Abi Dawud 216
In-book reference: Book 1, Hadith 216
English translation: Book 1, Hadith 216