عَنْ أَبِي قَتَادَةَ رَضِيَ اللّهُ عَنْهُ: أَنَّ رَسُولَ اللّهِ صَلَّى اللّهُ عَلَيْهِ وَسَلَّمَ سُئِلَ عَنْ صَوْمِ الاثْنَيْنِ فقَالَ: «ذَلِكَ يَوْمٌ وُلِدْتُ فِيهِ، وَيَوْمٌ بُعِثْتُ -أَوْ أُنْزِلَ عَلَيَّ- فِيهِ» رَوَاهُ مُسْلِمٌ.
Abu Qatadah (may Allah be pleased with him) reported that the Messenger of Allah (peace and blessings be upon him) was asked about fasting on Monday, and he said: "That is a day on which I was born, and a day on which I was commissioned as a Prophet" — or "on which revelation was sent down upon me." Reported by Muslim.
الشرح · explanation
أنزل عليّ فيه: أي بدأ تنزيل القرآن في يوم الاثنين.
"On which revelation was sent down upon me": that is, the sending down of the Qur'an began on a Monday.
الدروس · lessons
بيان فضل الصيام في يوم الاثنين. أنّ سبب هذه الأفضلية أنّ النّبيّ صَلَّى اللّهُ عليه وَسَلَّمَ ولد في يوم الاثنين، وبدأ نزول القرآن عليه في يوم الاثنين السابع عشر من شهر رمضان. أنّ النّبيّ كان يتقرب إلى اللّهِ بأحبّ الطاعات إليه في اليوم الذي ولد فيه، وأوحي إليه فيه.
An explanation of the merit of fasting on Monday. The reason for this merit is that the Prophet (peace and blessings be upon him) was born on a Monday, and the sending down of the Qur'an to him began on a Monday, the seventeenth of the month of Ramadan. The Prophet used to draw near to Allah with the acts of obedience most beloved to Him on the day on which he was born and on which revelation came to him.