Q: What is the ruling on a person who enters the Masjid (mosque) while being Junub (in a state of major ritual impurity)? A: There is no sin on a Junub person if they enter the Masjid just for passing through; whereas entering the Masjid for sitting and staying in it is not permissible for the Junub, because Allah (Exalted be He) says: O you who believe! Approach not As-Salât (the prayer) when you are in a drunken state until you know (the meaning) of what you utter, nor when you are in a state of Janâba ,(i.e. in a state of sexual impurity and have not yet taken a bath) except when travelling on the road (without enough water, or just passing through a mosque), till you wash your whole body. (Part No. 5; Page No. 260

A: There is no sin on a Junub person if they enter the Masjid just for passing through; whereas entering the Masjid for sitting and staying in it is not permissible for the Junub, because Allah (Exalted be He) says: O you who believe! Approach not As-Salât (the prayer) when you are in a drunken state until you know (the meaning) of what you utter, nor when you are in a state of Janâba ,(i.e. in a state of sexual impurity and have not yet taken a bath) except when travelling on the road (without enough water, or just passing through a mosque), till you wash your whole body. (Part No. 5; Page No. 260) Furthermore, the Prophet (peace be upon him) said: I do not allow the Masjid to a menstruating woman or a Junub person. (Narrated by Abu Dawud and ranked as Sahih [authentic] by Ibn Khuzaymah) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.