(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 2298 
He reported God’s messenger as saying, "Two expressions which are light on the tongue but heavy in the scale are dear to the Compassionate One:
Glory be to God, and I begin with praise of Him; and Glory be to God the Incomparably Great." (Bukhari and Muslim.)
وَعَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: " كَلِمَتَانِ خَفِيفَتَانِ عَلَى اللِّسَانِ ثَقِيلَتَانِ فِي الْمِيزَانِ حَبِيبَتَانِ إِلَى الرَّحْمَنِ: سُبْحَانَهُ الله وَبِحَمْدِهِ سُبْحَانَهُ الله الْعَظِيم "
 مُتَّفَقٌ عَلَيْهِ  (الألباني)حكم :
Reference : Mishkat al-Masabih 2298
In-book reference : Book 9, Hadith 72