If I am Hanafi, & the masaajid in the area follow the Shaafi madhab, can I join in the jamaat for Asr even tho’ the Hanafi time for Asr has not yet set in / for convenience eg while travelling, can I read Asr salaat as soon as the Shafi time has set in
Yes, it will be permissible to read Asr in a Shaafi Musjid once the time for Asr Salaat sets in.
For convenience during travelling, it will be better to read the Asr Salaat in its last time just before the time for Maghrib Sets in and then read the Maghrib Salaat once the Maghrib time sets in. (Tirmidhi pg.42; Ashrafi)
and Allah Ta’ala Knows Best
Mufti Ebrahim Desai