Ruling on Offering Obligatory Prayer before Its Due Time
Is it allowed to offer an obligatory prayer before its fixed time?
Almighty Allah says:
Indeed, prayer has been decreed upon the believers a decree of specified times. (An-Nisa’ 4:103)
There is a consensus among scholars that offering an obligatory prayer before the adhan (call of prayer) or its fixed time is not allowed and such prayer is not valid. A person who does not have an excuse and he/she can pray on time then he/she must pray on time. One cannot pray before the fixed time just because he is busy or he has engaged with something.
To know more about the ruling of praying before the fixed time, you could watch this short talk with Dr. Muhammad Salah.
Source: Huda Youtube Channel.