“فَ” (fa)a joining word meaning “then / so.” It connects this word to what came before.Corpus grammarCONJ — prefixed conjunction fa (then / so).
“أَقْبَلَ” (ʾaaqbala)means “Then approached” in this verse. It is a verb. an action or state word. Here it is perfect verb, verb pattern four, third person — masculine — singular.Corpus grammarV — third person masculine singular perfect verb.