ANSWER:

If he was considered muslim and was not labeled by scholars to be a disbeliever, the marriage is valid but he must pray now or she must leave him if he doesn’t. 

If a couple got a proper Nikah but the man didn’t pray although he didn’t know the ruling on abandoning salah and assumed himself to be a Muslim, is the marriage valid and are the children that resulted from the marriage legitimate. What if the man had weak general beliefs? What should the kids do if they grew up with and were raised by this figure their whole life?

Fiqh of Marriage, Invalid Marriages, Prayer | July 2, 2022 12:47 am
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Dear Sheikh,my sister does the ghusl 2 sometimes 3 days after she’s done with her period out of laziness.Then she takes it and prays.She feels guilty for this,but due to her low iman she is reckless.Does this behaviour take her out of fold of islam and does she need to make up for the prayers she was supposed to pray right after her period ended?
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I wasn’t sure if I recited a second surah after Fatiha while praying. I wasn’t certain/sure I forgot it but had more the feeling that i forgot so a recited an second surah. Is this permissable? And is my prayer valid?