તમાકુની નિંદા કરે, તેનું જાય સત્યાનાશ.

tamākunī niṁdā karē, tēnuṁ jāya satyānāśa.

Literally: He who criticizes tobacco, his ruin is certain.
What it means: Those who judge the habits of others will face their own downfall.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1923) ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1921) · 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.