What did the Prophet Muhammad (saw) tell Hassan bin Thabit to do on the day of Quraiza's (besiege)?
 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).' "