ઓછું આવવા દેવું નહીં, તે ઓછું કહેવું નહીં.

ōchuṁ āvavā dēvuṁ nahīṁ, tē ōchuṁ kahēvuṁ nahīṁ.

Literally: Do not let it come less, and do not say it less.
What it means: Be precise and generous in your dealings; do not shortchange others or yourself.

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.