(31) CHAPTER. The return of the Prophet from (the battle of) the Ahzab (Confederates) and his going out to Bani Quraiza and his besieging them.
Narrated Al-Bara: The Prophet said to Hassan, Abuse them (with your poems), and Gabriel is with you (i.e, supports you). (Through another group of sub narrators) Al-Bara bin Azib said, On the day of Quraiza's (besiege), Allah's Apostle said to Hassan bin Thabit, 'Abuse them (with your poems), and Gabriel is with you (i.e. supports you).'
Authentic