માગનારને વાયદા, પણ પેટને વાયદા ન થાય.

māganāranē vāyadā, paṇa pēṭanē vāyadā na thāya.

Literally: Promises can be made to a creditor, but promises cannot be made to the stomach.
What it means: One can delay paying back debts, but hunger cannot be postponed.

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.