أَخْبَرَنَا هَنَّادُ بْنُ السَّرِيِّ، عَنْ أَبِي بَكْرِ بْنِ عَيَّاشٍ، عَنْ أَبِي حَصِينٍ، عَنْ أَبِي عَبْدِ الرَّحْمَنِ، قَالَ قَالَ عَلِيٌّ كُنْتُ رَجُلاً مَذَّاءً وَكَانَتِ ابْنَةُ النَّبِيِّ صلى الله عليه وسلم تَحْتِي فَاسْتَحْيَيْتُ أَنْ أَسْأَلَهُ فَقُلْتُ لِرَجُلٍ جَالِسٍ إِلَى جَنْبِي سَلْهُ ‏.‏ فَسَأَلَهُ فَقَالَ ‏"‏ فِيهِ الْوُضُوءُ ‏"‏ ‏.‏

It was narrated that 'Ali said

"I said to Al-Miqdad: 'If a man is intimate with his wife and excretes prostatic fluid but does not have intercourse - ask the Prophet (ﷺ) about that, for I am too shy to ask him about it since his daughter is married to me.' So he asked him, and he said: 'Let him wash his male member and perform Wudu' as for Salah.'"