كتاب الطهارة وسننها
1  
The Book of Purification and its Sunnah
(70)
Chapter: Ablution from prostatic fluid
(70)
باب الْوُضُوءِ مِنَ الْمَذْىِ
Sunan Ibn Majah 505
It was narrated from Miqdad bin Aswad that:
He asked the Prophet about a man who approached his wife, but did not ejaculate. He said: "If anyone of you finds that, he should sprinkle water over his private part (meaning he must wash it) and perform ablution."
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا عُثْمَانُ بْنُ عُمَرَ، حَدَّثَنَا مَالِكُ بْنُ أَنَسٍ، عَنْ سَالِمٍ أَبِي النَّضْرِ، عَنْ سُلَيْمَانَ بْنِ يَسَارٍ، عَنِ الْمِقْدَادِ بْنِ الأَسْوَدِ، أَنَّهُ سَأَلَ النَّبِيَّ ـ صلى الله عليه وسلم ـ عَنِ الرَّجُلِ يَدْنُو مِنِ امْرَأَتِهِ فَلاَ يُنْزِلُ قَالَ ‏ "‏ إِذَا وَجَدَ أَحَدُكُمْ ذَلِكَ فَلْيَنْضِحْ فَرْجَهُ - يَعْنِي لِيَغْسِلْهُ - وَيَتَوَضَّأْ ‏"‏ ‏.‏
Grade: Sahih (Darussalam)
Reference : Sunan Ibn Majah 505
In-book reference : Book 1, Hadith 239
English translation : Vol. 1, Book 1, Hadith 505