Answer
(Fatwa: 769/715=L/1429)
If little wetness is discharged after urinating or because of bad thoughts or lusty look which does not cause slackness in the body, then if the clothes are smeared by it, you should wash them, since those drops are impure and the clothes will not be clean if the impurity was wiped with other clothes etc, it will remain impure. Also you should protect your eyes and keep yourself away from having bad look. Likewise, you should clean yourself with a clot or toilet paper after you urinate, and when the drops stop coming out, you should wash it with water and get into your clothes.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband