כא אמר רבא מנא אמינא ליה דתניא הערלה וכלאי הכרם ושור הנסקל ועגלה ערופה וציפורי מצורע ופטר חמור ובשר בחלב כולן מטמאין טומאת אוכלין
21 the birds of the leper,<span class="x" onmousemove="('comment',' The two clean birds, one of which was killed, which the leper brought after his recovery.');"><sup>20</sup></span> the first-birth of an ass,<span class="x" onmousemove="('comment',' Which was ritually slaughtered for a gentile, and as it was still struggling and not dead, it did not posses the uncleanness of nebelah (a carcass) . Therefore, if a dead reptile came in contact with it, it received the uncleanness relating to food, so that if it touched other food, it causes levitical uncleanness. The ritual slaughtering, however, helped at least to make it fit to receive the uncleanness of food. Another interpretation is that even if the ass had its neck broken and it was, therefore, nebelah, we can still apply here the principle of the uncleanness of food, if e.g., there was less of the carcass in size than an olive which, although it did not become unclean as nebelah, may yet be supplemented with other food to the required size of an egg to make it receive the uncleanness of food.');"><sup>21</sup></span> and [the mixture] of meat and milk [boiled together],<span class="x" onmousemove="('comment',' And consequently forbidden for any use.');"><sup>22</sup></span> all of them receive the uncleanness relating to food.<span class="x" onmousemove="('comment',' For although they are forbidden to be used, the uncleanness has the effect that should they come in contact with other food, the latter becomes unclean.');"><sup>23</sup></span>