It was narrated that Ibn Umar said:

"While we were praying with the Messenger of Allah ﷺ, a man among the people said: 'Allahu Akbaru kabira, wal-hamdu Lillahi kathira, wa subhan-Allahi bukratan was asila (Allah is Most Great and much praise be to Allah and glorified be Allah at the beginning and end of the day).' The Messenger of Allah ﷺ said: 'Who is the one who said such and such?' A man among the people said: 'I did, O Messenger of Allah.' He said: ' I like it,' and he said words to the effect that the gates of the Heavens had been opened for it." Ibn Umar said: "I never stopped saying it since I heard the Messenger of Allah ﷺ say that."

أَخْبَرَنَا مُحَمَّدُ بْنُ شُجَاعٍ الْمَرُّوذِيُّ، قَالَ حَدَّثَنَا إِسْمَاعِيلُ، عَنْ حَجَّاجٍ، عَنْ أَبِي الزُّبَيْرِ، عَنْ عَوْنِ بْنِ عَبْدِ اللَّهِ، عَنِ ابْنِ عُمَرَ، قَالَ بَيْنَمَا نَحْنُ نُصَلِّي مَعَ رَسُولِ اللَّهِ ﷺ فَقَالَ رَجُلٌ مِنَ الْقَوْمِ اللَّهُ أَكْبَرُ كَبِيرًا وَالْحَمْدُ لِلَّهِ كَثِيرًا وَسُبْحَانَ اللَّهِ بُكْرَةً وَأَصِيلاً . فَقَالَ رَسُولُ اللَّهِ ﷺ " مَنِ الْقَائِلُ كَلِمَةَ كَذَا وَكَذَا " . فَقَالَ رَجُلٌ مِنَ الْقَوْمِ أَنَا يَا رَسُولَ اللَّهِ . قَالَ " عَجِبْتُ لَهَا " . وَذَكَرَ كَلِمَةً مَعْنَاهَا " فُتِحَتْ لَهَا أَبْوَابُ السَّمَاءِ " . قَالَ ابْنُ عُمَرَ مَا تَرَكْتُهُ مُنْذُ سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُهُ .