Abu Hurairah (May Allah be pleased with him) reported:
The Messenger of Allah (Sall Allahu alaihi wa Aalihi wa Sallim) said,
"He who recites in the morning and in the evening the statement:
`Subhan-Allahi wa bihamdihi
(Allah is free from imperfection and I begin with praising Him)'
one hundred times, will not be surpassed on the Day of Resurrection by anyone
with better deeds than one who utters the same words or utters more of these words.''
[Sahih Muslim].