Fortress of the Muslim
Hisn al-Muslim 254
Arabic hadith text
قَالَ صلى الله عليه وسلم: مَنْ قَالَ (سُبْحَانَ اللَّهِ وَبِحَمْدِهِ) فِي يَوْمٍ مِائَةَ مَرَّةٍ حُطَّتْ خَطَايَاهُ وَلَوْ كَانَتْ مِثْلَ زَبَدِ الْبَحْر.
Translation
The Prophet, peace and blessings be upon him, said that whoever says Glory be to Allah and praise be to Him one hundred times in a day will have his sins wiped away, even if they are like the foam of the sea.