I heard from some other imam saying this is not an issue if it happens unknowingly. Can you please advise?
بسم الله الرحمن الرحيم
(Fatwa: 271/271/B=03/1437)
If the order of surahs was reversed by mistake then the salah was valid without a doubt. The other imam told the correct ruling.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband
