નિંદા ઐસી ડાકણી, કુલ બધાને ખાય;

niṁdā aisī ḍākaṇī, kula badhānē khāya;

Literally: Slander is such a witch, it devours the entire family;
What it means: Warns that engaging in slander and gossip destroys reputations and ruins entire families.

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.