Reference for Bava Kamma 50:5
א"ל כבר רמא ניהליה ר"נ בר זכריה לאביי וא"ל אביי תנא ממפץ בשרץ מייתי לה וה"ק מפץ בשרץ מניין ודין הוא ומה פכין קטנים שטהורים בזב טמאין בשרץ מפץ שטמא בזב אינו דין שיהא טמא בשרץ
coming in contact with dead reptiles<span class="x" onmousemove="('comment',' The minimum quantity for defilement by which is the size of a lentil, a quantity which can easily pass through the opening of the smallest bottle. ');"><sup>13</sup></span> become defiled? It is a logical conclusion: for if tiny [earthenware] jugs that remain undefiled by the handling of <i>zab</i>,<span class="x" onmousemove="('comment',' As he is unable to insert even his small finger within. Earthenware is susceptible to levitical uncleanness only through the medium of its interior. Lev. XI, 33. ');"><sup>14</sup></span> become defiled when in contact with dead reptiles,<span class="x" onmousemove="('comment',' Lev. XI, 32: … whether it be any vessel of wood or raiment or skin … it shall be unclean until the even. ');"><sup>15</sup></span>