(Radi'Allahu anhu) reported:
The Messenger of Allah (Sall'Allahu alaihi wa sallam) said,
"There are two statements that are
light for the tongue to remember,
heavy in the scales
and are dear to the Merciful:
'Subhan-Allahi wa bihamdihi,
'(Glory be to Allah and His is the praise,
(and) Allah, the Greatest is free from imperfection)'.''
[Al-Bukhari and Muslim].