Sahih Muslim 2694
Sahih Muslim · Book 48: The Book Pertaining to the Remembrance of Allah, Supplication, Repentance and Seeking Forgiveness · The Virtue Of Tahlil (Saying La Ilaha Ill-Allah), Tasbih (Saying Subhan Allah) And (Du'a) Supplication
Abu Huraira reported Allah's Messenger (ﷺ) as saying:
حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ ، وَزُهَيْرُ بْنُ حَرْبٍ ، وَأَبُو كُرَيْبٍ وَمُحَمَّدُ بْنُ طَرِيفٍ الْبَجَلِيُّ قَالُوا حَدَّثَنَا ابْنُ فُضَيْلٍ ، عَنْ عُمَارَةَ بْنِ الْقَعْقَاعِ ، عَنْ أَبِي زُرْعَةَ ، عَنْ أَبِي هُرَيْرَةَ ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " كَلِمَتَانِ خَفِيفَتَانِ عَلَى اللِّسَانِ ثَقِيلَتَانِ فِي الْمِيزَانِ حَبِيبَتَانِ إِلَى الرَّحْمَنِ سُبْحَانَ اللَّهِ وَبِحَمْدِهِ سُبْحَانَ اللَّهِ الْعَظِيمِ " .
Two are the expressions which are light on the tongue, but heavy in scale, dear to the Compassionate One:" Exalted is Allah (He is free from imperfection) and all praise is due to Him" ;" Exalted is Allah (He is free from imperfection), the Great."