Missing a waajib of Salaah
Q: If a person misses a wajib of salaah unintentionally or because they did not have knowledge of the particular action, must they read the salaah again? What if this salaah is Asr salaah, can they read it again in the asr time?
A: If the time has elapsed then he does not have to repeat it.
And Allah Ta’ala (الله تعالى) knows best.