Riyad as-SalihinChapter 8Hadith 576
Full Sharh — Riyad as-Salihin 576
عن أبي قتادة رضي الله عنه أن رسول الله صلى الله عليه وسلم: سئل عن صوم يوم الاثنين فقال: "ذلك يوم ولدت فيه، ويوم بعثت أو أنزل علي فيه" ((رواه مسلم)).
English Translation
Abu Qatadah (May Allah be pleased with him) reported:: The Messenger of Allah (ﷺ) 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.".
Source
Riyad as-Salihin(رياض الصالحين)
The Book of Virtues
Hadith Number
576