כִּכְלוּב֙ מָ֣לֵא ע֔וֹף כֵּ֥ן בָּתֵּיהֶ֖ם מְלֵאִ֣ים מִרְמָ֑ה עַל־כֵּ֥ן גָּדְל֖וּ וַֽיַּעֲשִֽׁירוּ׃
Come una gabbia piena di uccelli, così le loro case sono piene d'inganno; perciò sono diventati grandi e si sono arricchiti.
Mishnah Kelim
A fishing net is susceptible to uncleanness on account of its bag. Nets, snares, bird-traps, slings and fishermen's skeins are susceptible to uncleanness. A fish-trap, a bird-basket and a bird-cage are not susceptible to uncleanness.