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)