બાપનું બારમું ને પડોસનું ઘર, ફરી ફરીને મળે નહીં.

bāpanuṁ bāramuṁ nē paḍōsanuṁ ghara, pharī pharīnē maḷē nahīṁ.

Literally: A father's twelfth-day funeral feast and a neighbor's house are not found again and again.
What it means: Certain rare opportunities or windfalls occur only once in a lifetime and should be fully exploited.

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.