H 158 - In another traditional report, it is mentioned that Imam (a.s) was wounded on the eve of the 19th and he passed away on the 21st. Obviously the second report is more accurate.
158- وفي رواية أخرى أنه قبض ليلة إحدى وعشرين وضرب ليلة تسع عشرة. وهي الأظهر.
Similar narrations
Kitāb al-Ghayba #341This copy is the will of Amirul Momineen (a.s) to Imam Hasan Mujtaba (a.s) and it is also mentioned in Kitab Sulaym Ibn Qays Hilali, which...