BT BM 29b(46) :ולא אמרן אלא דלא שדא בהו ציבא אבל שדא בהו ציבא לית לן בה‏ : we are speaking only in where he did not put a chip in them, but if he put a chip in them, we are not concerned
See the entire entry for ṣyb n.m. chip, small piece of something