English translation
3943. Narrated Ibn ‘Abbās رضي الله عنهما. When the Prophet ﷺ arrived at Al-Madina he found that the Jews observed fast on the day of ‘Āshūrā. They were asked the reason for the fast. They replied, "This is the day when Allāh gave Mūsā (Moses) and the children of Isrāēl a victory over Fir’aun (Pharoah), so we observe fast on this day as a sign of gratitude to Allāh." Allāh's Messenger ﷺ said, "We are closer to Mūsā than you." Then he ordered that fasting on this day should be observed.
