It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Whoever declares the greatness of Allah once (says Allahu akbar), twenty good deeds are written for him and twenty of his sins are wiped away; whoever glorifies Allah once (says Subhan Allah), twenty good deeds are written for him and twenty sins are wiped away; and whoever praises Allah once (says al-hamdu lillah), thirty good deeds are written for him and thirty sins are wiped away." This hadith has a sahih chain (sahih al-isnad), but the two Shaykhs did not record it.

It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Whichever servant says: 'Al-hamdu lillahi 'adada ma khalaq, wal-hamdu lillahi mil'a ma khalaq, wal-hamdu lillahi 'adada ma fis-samawati wal-ard, wal-hamdu lillahi 'adada ma ahsa kitabuh, wal-hamdu lillahi 'adada kulli shay', wa subhan Allahi mithlahunn' (All praise is for Allah equal to the number of what He has created; all praise is for Allah equal to the fill of what He has created; all praise is for Allah equal to the number of what is in the heavens and the earth; all praise is for Allah equal to what His Book has enumerated; all praise is for Allah equal to the number of all things; and likewise Subhan Allah), then the Messenger of Allah (peace and blessings be upon him) described the great merit of this deed." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.