(70) باب الْوُضُوءِ مِنْ مَسِّ الذَّكَرِ
Narrated Busrah daughter of Safwan:
Abdullah ibn AbuBakr reported that he heard Urwah say: I entered upon Marwan ibn al-Hakam. We mentioned things that render the ablution void. Marwan said: Does it become void by touching the penis? Urwah replied: This I do not know. Marwan said: Busrah daughter of Safwan reported to me that she heard the Messenger of Allah (ﷺ) say: He who touches his penis should perform ablution.
Reference: Sunan Abi Dawud 181
In-book reference: Book 1, Hadith 181
English translation: Book 1, Hadith 181