વાદ વિવાદ જો કરે, સો નીવરેકા કામ;

vāda vivāda jō karē, sō nīvarēkā kāma;

Literally: He who engages in arguments, that is the work of the idle;
What it means: Arguing over spiritual matters is a waste of time practiced only by those who lack true devotion.

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.