The Ruling on the White Liquid which is emitted after Urination
Question :
When I use the toilet, at the end of urination, I see some seminal liquid, and I don't know if I should perform Ghusl each time I urinate, or what should I do, because I am in doubt as to whether its effect is the same as that of sexual intercourse.
Answer:
This 'semen' which comes out after passing urine is Wadi, which is well known; and since it is emitted after urination, and it flows, there is no need to perform Ghusl due to it, for it only invalidates Wudhu'. The penis must be washed after it and then Wudhu' must be performed. Ghusl is not required, it is only required when sperm is ejaculated due to sexual arousal and not for anything else. Ejaculation means that it spurts out with force, like the emission of urine, which flows and drips. So its emission thus (i.e. in the way you have described) will not harm you.
Source:
Ibn Jibreen
Fatawa Islamiyah, Vol. 2 Page 88