He reported God’s messenger as saying that if anyone says a hundred times in a day, "Glory be to God, and I begin with praise to Him", his sins will be removed from him though they are like the foam of the sea. (Bukhari and Muslim.)
Hadith Referenceمشكوة المصابيح / كتاب الدعوات / 2296
Hadith Gradingالألبانی:مُتَّفَقٌ عَلَيْهِ | زبیر علی زئی:متفق عليه
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «متفق عليه، رواه البخاري (6405) و مسلم (2691/28)»