Sunan an-Nasa'i 155
سنن النسائي#155Da'ifIt was narrated from Rafi' bin Khadij that 'Ali told 'Ammar to ask the Messenger of Allah (ﷺ) about prostatic fluid, and he said:'Let him wash his male member and perform Wudu
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahMunkar
Al-AlbaniMunkar
Zubair Ali ZaiHasan
In-book reference: 1:156