Allah says:

[إِنَّ قُرْءَانَ الْفَجْرِ كَانَ مَشْهُودًا]

(Verily the recitation of the Qur'an in the early down is ever witnessed.) Ibn Mas`ud reported from Abu Hurayrah (may Allah be pleased with them both) that the Prophet said concerning this Ayah :

[وَقُرْءَانَ الْفَجْرِ إِنَّ قُرْءَانَ الْفَجْرِ كَانَ مَشْهُودًا]

(and recite the Qur'an in the early dawn. Verily, the recitation of the Qur'an in the early dawn is ever witnessed.)

«تَشْهَدُهُ مَلَائِكَةُ اللَّيْلِ وَمَلَائِكَةُ النَّهَار»

(It is witnessed by the angels of the night and the angels of the day.) Al-Bukhari narrated from Abu Hurayrah that the Prophet said:

«فَضْلُ صَلَاةِ الْجَمِيعِ عَلَى صَلَاةِ الْوَاحِدِ خَمْسٌ وَعِشْرُونَ دَرَجَةً، وَتَجْتَمِعُ مَلَائِكَةُ اللَّيْلِ وَمَلَائِكَةُ النَّهَارِ فِي صَلَاةِ الْفَجْر»

(The prayer offered in congregation is twenty-five degrees better than the prayer offered individually, and the angels of the night and the angels of the day meet at Salat Al-Fajr.) Abu Hurayrah said: Recite, if you wish:

[وَقُرْءَانَ الْفَجْرِ إِنَّ قُرْءَانَ الْفَجْرِ كَانَ مَشْهُودًا]

(and recite the Qur'an in the early dawn. Verily, the recitation of the Qur'an in the early dawn is ever witnessed.) Imam Ahmad recorded from Ibn Mas`ud and Abu Hurayrah that the Prophet said, concerning the Ayah:

[وَقُرْءَانَ الْفَجْرِ إِنَّ قُرْءَانَ الْفَجْرِ كَانَ مَشْهُودًا]

(and recite the Qur'an in the early dawn. Verily, the recitation of the Qur'an in the early dawn is ever witnessed.)

«تَشْهَدُهُ مَلَائِكَةُ اللَّيْلِ وَمَلَائِكَةُ النَّهَار»

(It is witnessed by the angels of the night and the angels of the day.) This was recorded by At-Tirmidhi, An-Nasa'i, and Ibn Majah. At-Tirmidhi said, "It is Hasan Sahih.'' According to the version recorded in the Two Sahihs from Abu Hurayrah, the Prophet said:

«يَتَعَاقَبُونَ فِيكُمْ مَلَائِكَةٌ بِاللَّيْلِ وَمَلَائِكَةٌ بِالنَّهَارِ، وَيَجْتَمِعُونَ فِي صَلَاةِ الصُّبْحِ وَفِي صَلَاةِ الْعَصْرِ، فَيَعْرُجُ الَّذِينَ بَاتُوا فِيكُمْ فَيَسْأَلُهُمْ رَبُّهُمْ وَهُوَ أَعْلَمُ بِكُمْ كَيْفَ تَرَكْتُمْ عِبَادِي؟ فَيَقُولُونَ: أَتَيْنَاهُمْ وَهُمْ يُصَلُّونَ، وَتَرَكْنَاهُمْ وَهُمْ يُصَلُّون»

(The angels of the night and the angels of the day come amongst you in successive groups (in shifts). They meet at the Morning prayer (Fajr) and at the Mid-afternoon prayer ('Asr). Those who stayed among you at ascend, and their Lord asks them, although He knows best about you, "How did you leave My servants'' They say, "We came to them when they were praying and we left them when they were praying.'') `Abdullah bin Mas`ud said, "The two guards meet at Salat Al-Fajr, and one group ascends while the other stays where it is. '' These were the comments of Ibrahim An-Nakha`i, Mujahid, Qatadah and others on the Tafsir of this Ayah.