Al-Aḥzāb: The Companies or The Combined Forces, referring to the alliance of disbelieving Arab tribes against the Muslims in Madīnah for the battle called "al-Aḥzāb" or "al-Khandaq" (the Trench).
O Prophet, fear Allāh and do not obey the disbelievers and the hypocrites. Indeed, Allāh is ever Knowing and Wise.