English translation
686. Ṣilah bin Zufar said: “We were with ‘Ammār bin Yāsir when a roasted sheep was brought and he said: ‘Eat.’ Someone among the people said: ‘I am fasting.’ So ‘Ammār said: ‘Whoever fasts on a day in which there is doubt, then he has disobeyed Abul-Qāsim (ﷺ).’” (Ḍa‘īf) (He said:) There are narrations on this topic from Abū Hurairah and Anas. Abū ‘Eisā said: The Ḥadīth of ‘Ammār is a Ḥasan Ṣaḥīḥ Ḥadīth. This is acted upon according to most of the people of knowledge among the Companions of the Prophet ﷺ, and those who followed them among the Tābi‘īn. It is the view of Sufyān Ath-Thawrī, Mālik bin Anas, ‘Abdullāh bin Al-Mubārak, Ash-Shāfi'ī, Aḥmad, and Ishāq. They considered it disliked for a man to fast on the day in which there is doubt. Most of them held the view that if he fasted it and it was one of the days of Ramaḍān then he was to make up a day in place of it.[1]