Miqdad was told, "Ask the Messenger of Allah ﷺ about a man who draws near to his wife and emits prostatic fluid, for I am too shy to ask him myself since his daughter is married to me."So he asked, and the Messenger of Allah ﷺ said, "He should wash his private parts and testicles and perform ablution."
حدثنا يحيى بن سعيد عن هشام أخبرني أبي أن
للمقداد سل رسول الله ﷺ عن الرجل يدنو من المرأة فيمذي فإني أستحيي منه لأن ابنته عندي فقال رسول الله ﷺ يغسل ذكره وأنثييه ويتوضأ
No references are available.
This isnad is sahih. It is a longer version of 1009. See also 1029. Hisham is Ibn Urwa.