(9) Supplications
كتاب الدعوات
(3a) Chapter: The Reward for Glorifying, Praising, Declaring God’s Unity and His Greatness - Section 1
(3) باب ثواب التسبيح والتحميد - الفصل الأول
Mishkat al-Masabih 2296 
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.)
وَعَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: " مَنْ قَالَ: سُبْحَانَ اللَّهِ وَبِحَمْدِهِ فِي يَوْمٍ مِائَةَ مَرَّةٍ حُطَّتْ خَطَايَاهُ وَإِنْ كَانَتْ مِثْلَ زَبَدِ الْبَحْرِ "
 مُتَّفَقٌ عَلَيْهِ  (الألباني)حكم :
Reference : Mishkat al-Masabih 2296
In-book reference : Book 9, Hadith 70