Riyad as-Salihin
Riyad as-Salihin 1261
The Desirability of Observing Three Days of Fasting in Every Month
Arabic hadith text
وعن معاذة العدوية أنها سألت عائشة رضي الله عنها: أكان رسول الله صلى الله عليه وسلم يصوم من كل شهر ثلاثة أيام، فقالت: نعم. فقلت: من أي الشهر كان يصوم؟ قالت: لم يكن يبالي من أي الشهر يصوم. ((رواه مسلم)).
Translation
Mu'adhah Al-'Adawiyah (May Allah be pleased with her) reported
I asked 'Aishah (May Allah be pleased with her). Did the Messenger of Allah (ﷺ) use to observe three days of Saum (fasting) in every month?" She replied, "Yes." I asked, "On which days in the month did he observed fast?" She replied that he did not mind on which days of the month he observed fast.[Muslim].