عَنِ ابْنِ عُمَرَ رَضِيَ اللَّهُ عَنْهُمَا قَالَ: بَيْنَا نَحْنُ نُصَلِّي مَعَ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ إِذْ قَالَ رَجُلٌ فِي الْقَوْمِ: اللَّهُ أَكْبَرُ كَبِيرًا، وَالْحَمْدُ لِلَّهِ كَثِيرًا، وَسُبْحَانَ اللَّهِ بُكْرَةً وَأَصِيلًا، فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ: ((مَنِ الْقَائِلُ كَذَا وَكَذَا؟)) فَقَالَ رَجُلٌ مِنَ الْقَوْمِ: أَنَا يَا رَسُولَ اللَّهِ! قَالَ: ((عَجِبْتُ لَهَا، فُتِحَتْ لَهَا أَبْوَابُ السَّمَاءِ)) قَالَ ابْنُ عُمَرَ: فَمَا تَرَكْتُهُنَّ مُنْذُ سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ يَقُولُ ذَلِكَ
Sayyiduna Abdullah bin Umar (may Allah be pleased with him) says that once we were performing prayer with the Messenger of Allah (peace and blessings be upon him), when suddenly a man said these words: "Allah is the Greatest, very great. All praise is for Him, which is very much. He is pure; morning and evening we declare His purity." The Messenger of Allah (peace and blessings be upon him) asked: Who was the one who said these words? A man replied: O Messenger of Allah! It was I. The Prophet (peace and blessings be upon him) said: I was amazed at these words, for the gates of the heavens have been opened for them. Ibn Umar (may Allah be pleased with him) says: Since I heard the Messenger of Allah (peace and blessings be upon him) say this, I have never abandoned these words.