Imam Al-Nawawi’s Riyad-us-Saliheen
Chapter 229
The Desirability of Observing Saum (Fasting) on Monday and Thursday
1255. Abu Qatadah (May Allah be pleased with him) reported: The Messenger of Allah (sallallaahu alayhi wa sallam) was asked about fasting on Mondays. He said, “That is the day on which I was born and the day on which I received Revelation.”
[Muslim].
1256. Abu Hurairah (May Allah be pleased with him) reported: The Messenger of Allah (sallallaahu alayhi wa sallam) said, “Deeds of people are presented (to Allah) on Mondays and Thursdays. So I like that my actions be presented while I am fasting.”
[At-Tirmidhi].
1257. `Aishah (May Allah be pleased with her)u reported: The Messenger of Allah (sallallaahu alayhi wa sallam) used to observe fast on Mondays and Thursdays.
[At-Tirmidhi].
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