મોટાની જીભમાં કામ થાય.

mōṭānī jībhamāṁ kāma thāya.

Literally: Work gets done by the tongue of the great.
What it means: A powerful person's word is enough to get things accomplished.

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.