Expedition of Zayd ibn Harithah in al-Is took place in September, 627AD, 5th month of 6AH of the Islamic calendar[1][page needed][2][3] Zayd ibn Harithah, in Jumada Al-Ula 6 Hijri, at the head of a 170 horsemen, set out to a place called Al-is, intercepted a caravan of Quraish led by Abu al-As, Muhammad's relative and captured their camels as booty.
Abu al-As was the nephew of Khadija (Muhammad’s first wife) and a prosperous trader in Mecca.
When Muhammad received the prophet hood, Abu al-As declined to embrace Islam.
Abu al-As captors immediately agreed to release him from their captivity.
The verse relating to prohibition of marriage between women Muslims and disbelievers had not been revealed then according to Muslim scholar Saifur Rahman al Mubarakpuri.