"Angels come to you in succession by night and day, and they meet at Fajr prayer and 'Asr prayer. Then those who spent the night among you ascend, and He (Allah) will ask them, although He knows best: 'In what condition did you leave My slaves.' They will say: 'We left them when they were praying and we came to them when they were praying.'"  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ يَتَعَاقَبُونَ فِيكُمْ مَلاَئِكَةٌ بِاللَّيْلِ وَمَلاَئِكَةٌ بِالنَّهَارِ وَيَجْتَمِعُونَ فِي صَلاَةِ الْفَجْرِ وَصَلاَةِ الْعَصْرِ ثُمَّ يَعْرُجُ الَّذِينَ بَاتُوا فِيكُمْ فَيَسْأَلُهُمْ وَهُوَ أَعْلَمُ بِهِمْ كَيْفَ تَرَكْتُمْ عِبَادِي فَيَقُولُونَ تَرَكْنَاهُمْ وَهُمْ يُصَلُّونَ وَأَتَيْنَاهُمْ وَهُمْ يُصَلُّونَ  

"Prayer in congregation is twenty-five times more virtuous than the prayer of any one of you offered on his own. The angels of the night and the day meet at Fajr prayer. Recite if you wish: Verily, the recitation of the Qur'an in the early dawn is ever witnessed."[1] [1]Al-Isra' 17:78.  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ تَفْضُلُ صَلاَةُ الْجَمْعِ عَلَى صَلاَةِ أَحَدِكُمْ وَحْدَهُ بِخَمْسَةٍ وَعِشْرِينَ جُزْءًا وَيَجْتَمِعُ مَلاَئِكَةُ اللَّيْلِ وَالنَّهَارِ فِي صَلاَةِ الْفَجْرِ وَاقْرَءُوا إِنْ شِئْتُمْ { وَقُرْآنَ الْفَجْرِ إِنَّ قُرْآنَ الْفَجْرِ كَانَ مَشْهُودًا }  

"I heard the Messenger of Allah ﷺ say: 'No one will enter the Fire who prays before the sun rises and before it sets.'"  

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ لاَ يَلِجُ النَّارَ أَحَدٌ صَلَّى قَبْلَ طُلُوعِ الشَّمْسِ وَقَبْلَ أَنْ تَغْرُبَ