ઊજળે લુગડે દાગ લાગે.

ūjaḷē lugaḍē dāga lāgē.

Literally: A stain appears on clean clothes.
What it means: Those who maintain a high reputation are more easily judged for small mistakes.

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.