ભાદરવાની ભેંસ ને કલાડાની મેસ.

bhādaravānī bhēṁsa nē kalāḍānī mēsa.

Literally: A buffalo in the month of Bhadrapada and soot on a frying pan.
What it means: A person with a flawed character or ruined reputation can never be trusted to perform well.
The English proverb Shah set beside it: A cracked bell will never sound well.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1923) · read from the scan by machine — the Gujarati itself is unchecked · English is machine-made and nobody has checked it yet

Heard it differently, or know we've got the sense wrong? Tell us — that is exactly the kind of correction this needs.