TT #241 · Parshas Shemini · Aliyah 7 · Passuk 41
Chabad.org — Vayikra Chapter 11 with Rashi
English: “That creeps upon the earth”: Shmuel teaches that a cucumber infested while attached to its plant is forbidden because of the prohibition of a creeping thing upon the earth.
Chullin 67b.
E-Daf.com — Chullin 67b (Tsurras Hadaf)
Halachic application — The Chazal applies the verse’s wording to establish the stated rule.
A worm developing within produce can fall under the prohibition.