Ibn Umar reported: We were praying with the Messenger of Allah, peace and blessings be upon him, and a man among the people said, “Allah is the Greatest of the Great. All abundant praise is due to Allah, glory be to Him, morning and evening.” The Prophet said after the prayer, “Who said these words?” A man said, “It was me, O Messenger of Allah.” The Prophet said, “I was amazed at how the gates of heaven were opened for it.”
Source: Ṣaḥīḥ Muslim 601
Grade: Sahih (authentic) according to Muslim
عَنْ ابْنِ عُمَرَ قَالَ بَيْنَمَا نَحْنُ نُصَلِّي مَعَ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِذْ قَالَ رَجُلٌ مِنْ الْقَوْمِ اللَّهُ أَكْبَرُ كَبِيرًا وَالْحَمْدُ لِلَّهِ كَثِيرًا وَسُبْحَانَ اللَّهِ بُكْرَةً وَأَصِيلًا فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يعني بعد الصلاة مَنْ الْقَائِلُ كَلِمَةَ كَذَا وَكَذَا قَالَ رَجُلٌ مِنْ الْقَوْمِ أَنَا يَا رَسُولَ اللَّهِ قَالَ عَجِبْتُ لَهَا فُتِحَتْ لَهَا أَبْوَابُ السَّمَاءِ
601 صحيح مسلم كتاب المساجد ومواضع الصلاة باب ما يقال بين تكبيرة الإحرام والقراءة
