Sahih Muslim 2692
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:
حَدَّثَنِي مُحَمَّدُ بْنُ عَبْدِ الْمَلِكِ الأُمَوِيُّ ، حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ الْمُخْتَارِ ، عَنْ سُهَيْلٍ ، عَنْ سُمَىٍّ ، عَنْ أَبِي صَالِحٍ ، عَنْ أَبِي هُرَيْرَةَ ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ قَالَ حِينَ يُصْبِحُ وَحِينَ يُمْسِي سُبْحَانَ اللَّهِ وَبِحَمْدِهِ مِائَةَ مَرَّةٍ . لَمْ يَأْتِ أَحَدٌ يَوْمَ الْقِيَامَةِ بِأَفْضَلَ مِمَّا جَاءَ بِهِ إِلاَّ أَحَدٌ قَالَ مِثْلَ مَا قَالَ أَوْ زَادَ عَلَيْهِ " .
He who recites in the morning and in the evening (these words):" Exalted is Allah (He is free from imperfection)and all praise is due to Him" one hundred times, he would not bring on the Day of Resurrection anything excellent than this except one who utters these words or utters more than these words.