Narrator:Ali
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا هُشَيْمٌ، عَنْ يَزِيدَ بْنِ أَبِي زِيَادٍ، عَنْ عَبْدِ الرَّحْمَنِ بْنِ أَبِي لَيْلَى، عَنْ عَلِيٍّ، قَالَ
سُئِلَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ عَنِ الْمَذْىِ فَقَالَ " فِيهِ الْوُضُوءُ وَفِي الْمَنِيِّ الْغُسْلُ "
It was narrated that 'Ali said:
"The Messenger of Allah was asked about prostatic fluid and he said: 'For that ablution (is necessary), and for semen, bath is necessary.'"
Reported by Ibn Majah (No. 504) and Ahmad (No. 849).