હાજર સો હથીઆર.

hājara sō hathīāra.

Literally: Whatever is at hand is a hundred weapons.
What it means: Said of using whatever resource or tool is readily available to meet an immediate emergency.

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.