As-salāmu ‘alaykum wa raḥmatullāhi wa barakātuh, Is it correct that one may pray ‘Asr until the sun is no longer visible at all, meaning fully below the horizon? I’m confused about understand the exact difference between “sunset” and “the sun being fully below the horizon” Jazākallāhu khayran

Ustadh AbdulAziz al-Haqqan
Until the sun turns orange then the time of necessity starts meaning u must pray before this time if u are not in a necessity that forced u to delay.