સજ્જન ધાગા પ્રીતકા, ખેંચા મત તૂટ જાય;

sajjana dhāgā prītakā, khēṁcā mata tūṭa jāya;

Literally: O good person, do not pull the thread of love so hard that it breaks.
What it means: Relationships should be handled with care and gentleness, as once broken, they can never be fully restored without leaving a scar.

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.