Mombe yenzuma kufuma ivete kufunga chakadya nyanga dzayo.
English Direct Translation
A hornless ox lying down early in the morning puzzles over what ate up (hindered the growth of) its horns.
Kuona munhu akanyarara achipishana nepfungwa anenge achinetseka nezviri pamwoyo wake.
A person will ponder persistently over something which affects him deeply. The proverb may well be used by a once prosperous business man who has gone bankrupt.