(13) باب غَسْلِ الْمَذْىِ وَالْوُضُوءِ مِنْهُ
Narrated `Ali:
I used to get emotional urethral discharge frequently. Being the son-in-law of the Prophet (ﷺ) I requested a man to ask him about it. So the man asked the Prophet (ﷺ) about it. The Prophet (ﷺ) replied, "Perform ablution after washing your organ (penis)."
Reference: Sahih al-Bukhari 269
In-book reference: Book 5, Hadith 22
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 5, Hadith 269