Sahih Muslim | Book 3 | Chapter 3

Narrated by 'Ali
'Ali reported: I was one whose prostatic fluid flowed readily and I was ashamed to ask the Apostle (may peace be upon him) about it, because of the position of his daughter. I, therefore, asked Miqdad.b. al-Asad and he inquired of him (the Holy Prophet). He (the Holy Prophet) said: He should wash his male organ and perform ablution.

Narrated by 'Ali
'Ali reported: I felt shy of asking about prostatic fluid from the Apostle (may peace be upon him) because of Fatimah. I, therefore, asked al-Miqdad (to ask on my behalf) and he asked. He (the Holy Prophet) said: Ablution is obligatory in such a case.

Narrated by Ibn 'Abbas
Ibn 'Abbas reported it from 'Ali: We sent al-Miqdad b. al-Aswad to the Messenger of Allah (may peace be upon him) to ask him what must be done about prostatic fluid which flows from (the private part of) a person. The Messenger of Allah (may peace be upon him) said: Perform ablution and wash your sexual organ.