“فَ” (fa)a joining word meaning “then / so.” It connects this word to what came before.Corpus grammarCONJ — prefixed conjunction fa (then / so).
“ادْخُلِ” (adkhuli)means “So enter” in this verse. It is a verb. an action or state word. Here it is second person — feminine — singular.Corpus grammarV — second person feminine singular imperative verb.
“ى” (ā)an attached pronoun meaning “you” when speaking to one woman.Corpus grammarPRON — second person feminine singular subject pronoun.