Sahih Muslim 601Book 5, Hadith 193
حَدَّثَنَا زُهَيْرُ بْنُ حَرْبٍ، حَدَّثَنَا إِسْمَاعِيلُ ابْنُ عُلَيَّةَ، أَخْبَرَنِي الْحَجَّاجُ بْنُ أَبِي عُثْمَانَ، عَنْ أَبِي الزُّبَيْرِ، عَنْ عَوْنِ بْنِ عَبْدِ اللَّهِ بْنِ عُتْبَةَ، عَنِ ابْنِ عُمَرَ، قَالَ بَيْنَمَا نَحْنُ نُصَلِّي مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم إِذْ قَالَ رَجُلٌ مِنَ الْقَوْمِ اللَّهُ أَكْبَرُ كَبِيرًا وَالْحَمْدُ لِلَّهِ كَثِيرًا وَسُبْحَانَ اللَّهِ بُكْرَةً وَأَصِيلاً . فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنِ الْقَائِلُ كَلِمَةَ كَذَا وَكَذَا " . قَالَ رَجُلٌ مِنَ الْقَوْمِ أَنَا يَا رَسُولَ اللَّهِ . قَالَ " عَجِبْتُ لَهَا فُتِحَتْ لَهَا أَبْوَابُ السَّمَاءِ " . قَالَ ابْنُ عُمَرَ فَمَا تَرَكْتُهُنَّ مُنْذُ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ ذَلِكَ .
While we said prayer with the Messenger of Allah (ﷺ), one among the people said: Allah is truly Great, praise be to Allah in abundance. Glory be to Allah in the morning and the evening. The Messenger of Allah (may peace be upon, him) said: Who uttered such and such a word? A person among the people said: It is I, Messenger of Allah (who have recited these words). He (the Holy Prophet) said: It (its utterance) surprised me, for the doors of heaven were opened for It. Ibn 'Umar said: I have not abandoned them (these words) since I heard the Messenger of Allah (ﷺ) saying this.