It is a narration from one of the companions
from Bani Saleem tribe
that Prophet Sallallahu Aleihi Wa Sallam
counting on his hand said:


"The tasbeeh (Zikr) fills the half balance
and 'Alhamdolillah' fills it completely
and takbeer (Allah-o-Akbar) fills
whatsoever is in between sky & earth

and

fasting is half patience
and piousness is the half imaan (belief).


(At-Tirmidhi)