‘Ali b abi Talib said to al-miqdad, and made a similar statement as above. Al-Miqdad asked him (the prophet). The prophet (peace be upon him) said: he should wash his penis and testicles.

Abu Dawud said : The tradition has been narrators by al-Thawri and a group of narrators from Hisham on the authority of his father from al-Miqdad, from ‘Ali reporting from the prophet (May peace be upon him).
Sunan Abi Dawud Book 1, Hadith 208
← Previous Hadith Ali ibn AbuTalib commanded him to ask the Messenger of Allah (ﷺ) what a man should do when he wants to have intercourse with his wife and the prostatic fluid comes out (at this moment). (He said): I am ashamed of consulting him because of the position of his daughter. Al-Miqdad said: I asked the Messenger of Allah (ﷺ) about it. He said: When any of you finds, he should wash his private part, and perform ablution as he does for prayer.

Sunan Abi Dawud Book 1, Hadith 207 Next Hadith → I Asked al-Miqdad (to consult the prophet). He then narrated the tradition bearing the same meaning.

Abu Dawud said; this tradition has been reported with another chain of narrators. This version does not mention the word “testicles”.

Sunan Abi Dawud Book 1, Hadith 209