Who was the first person to emigrate for the sake of Allah after Ibrahim and Lot (peace be upon them)?

Allah, the Most High, has permitted His believing servants to flee with their religion if they are persecuted and constrained. Ibn al-Arabi said: "Fleeing from bodily harm is a grace from Allah, the Mighty and Majestic, in which He has granted permission. So, if a person fears for himself in a place, Allah, glorified be He, has permitted him to leave it and flee with himself to save it from harm." Among those who fled with their religion were Ibrahim and Musa, peace be upon them both.