What makes Ghusl (ritual bath)

Q: One of my friends told me that he notices that his underpants are damp when he gets up in the morning. Is it permissible for him to perform Wudu’ (ablution) and offer Salah (prayer) or should he perform Ghusl (ritual bath) every day? Some people say it is happening due to cold weather, but he said it happens both during the summer and winter.

(Part No. 5; Page No. 291) A: All praise be to Allah Alone, and peace and blessings be upon His Messenger, and his family and Companions.He is not required to perform Ghusl from Janabah (major ritual impurity related to sexual discharge) unless he is sure that it is Maniy (spermatic fluid). If it is not, he should perform Istinja’ (cleanse the private parts with water) and the Islamically prescribed Wudu’ (ablution), and wash the soiled part of his clothing.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.