ખુટ્યો વાણીઓ જુનાં ખત તપાસે.

khuṭyō vāṇīō junāṁ khata tapāsē.

Literally: A bankrupt merchant examines old ledgers.
What it means: A person who has run out of resources or options starts digging up past accounts, old grievances, or obsolete claims.

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.