Unanswered

aa mufti sahab. I study in ukraine and have no other way of getting answers to these questions plz reply to every question. 1. If a hanafi didn't know the hanafi way of doing qasr in travelling nd prayed according to shafi ruling of combining two prayers, are the prayers valid or repetiton is needed. 2. Can one pray behind a person who smokes but has beard nd is steadfast. 3 Can a syed eat food or something which is distributed by friends, if it is sadqah.Should he verify it everytime he thinks it can be sadqah. 4. Asr begins at 2 45 nd magrib starts after 10 min when my classes finish. But my classes start at 2 30. So i cannot pray before 2 30 nd after my classeszawal already starts. But acc to shafi fiqh asr starts at 2 so acc. To that i can pray before my classes. Is it permissible in this case to do it only when i've classes.