It was narrated that ‘Aishah said: “The Messenger of Allah (ﷺ) used to fast ‘Ashura’, and he ordered (others) to fast it too.”
SahihSahihSahihBook 7 · Hadith 96
سنن ابن ماجه
It was narrated that ‘Aishah said: “The Messenger of Allah (ﷺ) used to fast ‘Ashura’, and he ordered (others) to fast it too.”