كتاب 2
2  
Book 2
(2)
Chapter 2
(2)
باب 2
Muwatta Malik 87
Yahya related to me from Malik from Zayd ibn Aslam from his father that Jundub, the mawla of Abdullah ibn Ayyash, said, "I asked Abdullah ibn Umar about prostatic fluid and he said, 'When you find it, wash your genitals and do wudu as for prayer.' "
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ زَيْدِ بْنِ أَسْلَمَ، عَنْ جُنْدَبٍ، مَوْلَى عَبْدِ اللَّهِ بْنِ عَيَّاشٍ أَنَّهُ قَالَ سَأَلْتُ عَبْدَ اللَّهِ بْنَ عُمَرَ عَنِ الْمَذْىِ، فَقَالَ إِذَا وَجَدْتَهُ فَاغْسِلْ فَرْجَكَ وَتَوَضَّأْ وُضُوءَكَ لِلصَّلاَةِ ‏.‏
Reference : Muwatta Malik 87
In-book reference : Book 2, Hadith 34265
USC-MSA web (English) reference : Book 7, Hadith 87
  (deprecated numbering scheme)