Dhu l-Qa'da 23

• 5 AH - The Battle of Banu Qurayza (April 15, 627)
• 202 AH - Martyrdom of Imam al-Rida (a) according to some accounts (June 2, 818)
• 256 AH - Death of al-Zubayr b. Bakkar (October 22, 870)
• 1363 AH - Demise of Isma'il Mu'izzi (November 9, 1944)
• 1419 AH - Demise of Mahmud Ansari Qummi (March 11, 1999)