Abu Dawud
Purification (Kitab Al-Taharah)
Book Number: 001 / Hadith Number: 210
Narated By Sahl ibn Hunayf : I felt greatly distressed by the frequent flowing of prostatic fluid. For this reason I used to take a bath very often. I asked the apostle of Allah (pbuh) about this. He replied: Ablution will be sufficient for you because of this. I asked: Apostle of Allah, what should I do if it smears my clothes. He replied: It is sufficient if you take a handful of water and sprinkle it on your clothe when you find it has smeared it.