Reference for Yoma 146:18
אי הכי לא ניחייב עליה קרבן שבועה אלמא תנן שבועה שלא אוכל ואכל נבילות וטריפות שקצים ורמשים חייב ורבי שמעון פוטר
But surely punished with extirpation?<span class="x" onmousemove="('comment',' The term forbidden may mean: either unlawful but, de facto, unpunished; or normally: punished with lashes. But transgression by eating would be punished with extirpation, kareth (v. Glos.) .');"><sup>21</sup></span> - R'Ela, or as some say, R'Jeremiah, said: This refers only to less than the legal quantity.<span class="x" onmousemove="('comment',' Lit., 'half the standard'. The usual legal quantity of forbidden foods is the bulk of an olive; on the Day of Atonement, the bulk of a big date. Any less than that, though the eating thereof does not involve one in the prescribed punishment, nevertheless constitutes a transgression. That is what the Mishnah indicates by the term 'forbidden' i.e., in any quantity.');"><sup>22</sup></span>