عَنْ عَبْدِ اللَّهِ بْنِ عَمْروِ (بْنِ الْعَاصِ رَضِيَ اللَّهُ عَنْهُمَا) صَلَّيْنَا مَعَ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ الْمَغْرِبَ فَعَقَّبَ مَنْ عَقَّبَ وَرَجَعَ مَنْ رَجَعَ فَجَاءَ رَسُولُ اللَّهِ وَقَدْ كَادَ يَحْسِرُ ثِيَابَهُ عَنْ رُكْبَتَيْهِ، فَقَالَ: ((أَبْشِرُوا مَعْشَرَ الْمُسْلِمِينَ، هَٰذَا رَبُّكُمْ قَدْ فَتَحَ بَابًا مِنْ أَبْوَابِ السَّمَاءِ يُبَاهِي بِكُمُ الْمَلَائِكَةَ، يَقُولُ: هَٰؤُلَاءِ عِبَادِي قَضَوْا فَرِيضَةً وَهُمْ يَنْتَظِرُونَ أُخْرَى))
It is narrated from Sayyiduna Abdullah bin Amr bin al-As (may Allah be pleased with him), he says: We performed the Maghrib prayer with the Messenger of Allah (peace and blessings be upon him), then those who were to sit remained seated and those who were to leave went back. Suddenly, the Messenger of Allah (peace and blessings be upon him) came, and it was as if he was about to lift his garment from his knees, and he said: O assembly of Muslims! Rejoice, this is your Lord, He has opened one of the gates of the heavens and, boasting to the angels because of you, said: These are My servants, they have performed one obligatory act and are waiting for another obligatory act.