એની લાકડી ને એનો અરડો કે વાંસા.

ēnī lākaḍī nē ēnō araḍō kē vāṁsā.

Literally: His stick, and his back or spine.
What it means: Said when someone's own actions or implements cause their own punishment.

Also said as

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.