عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللّهُ عَنْهُ، عَنْ رَسُولِ اللّهِ صَلَّى اللّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «مَنْ سَبَّحَ اللّهَ فِي دُبُرِ كُلِّ صَلاةٍ ثَلاثًا وَثَلاثِينَ، وَحَمِدَ اللّهَ ثَلاثًا وَثَلاثِينَ، وَكَبَّرَ اللّهَ ثَلاثًا وَثَلاثِينَ، وَقَالَ تَمَامَ الْمِئَةِ: لا إِلٰهَ إِلّا اللّهُ وَحْدَهُ لا شَرِيكَ لَهُ، لَهُ الْمُلْكُ، وَلَهُ الحَمْدُ، وَهُوَ عَلَى كُلِّ شَيءٍ قَدِيرٌ غُفِرَتْ خَطَايَاهُ وَإِنْ كَانَتْ مِثْلَ زَبَدِ الْبَحْرِ» رَوَاهُ مُسْلِمٌ.

Abu Hurayrah (may Allah be pleased with him) reported that the Messenger of Allah (peace and blessings be upon him) said: "Whoever glorifies Allah at the end of every prayer thirty-three times, praises Allah thirty-three times, and magnifies Allah thirty-three times—that is ninety-nine—and completes the hundred by saying: There is no god but Allah alone, with no partner; His is the dominion and His is the praise, and He is capable of all things—his sins will be forgiven even if they are like the foam of the sea." Reported by Muslim.