ד ועוד שאלתיו מאי לשון רפידים ואמר לי רפידים שמה כתנאי ר' אליעזר אומר רפידים שמה ר' יהושע אומר שריפו עצמן מדברי תורה וכן הוא אומר (ירמיהו מז, ג) לא הפנו אבות אל בנים מרפיון ידים
4 'And they called to the people unto the sacrifices of their gods'.<span class="x" onmousemove="('comment',' Num. XXV, 2. itre,u vre');"><sup>7</sup></span> R'Eliezer says, this verse means that they [the Israelites] came into contact with naked bodies.<span class="x" onmousemove="('comment',' For lustful purposes. The word is also derived from the word to meet; they themselves, their bodies, met naked bodies in order to stimulate sexual desire. itre,u hre');"><sup>8</sup></span> But R'Joshua says they all became polluted.<span class="x" onmousemove="('comment',' is connected here with the word meaning seminal pollution,');"><sup>9</sup></span> <big><b>MISHNAH: </b></big>IF A COW GAVE BIRTH TO A SPECIES OF ASS, OR AN ASS GAVE BIRTH TO A SPECIES OF HORSE, IT IS EXEMPT FROM [THE LAW OF] THE FIRSTLING, FOR IT IS SAID: FIRSTLING [PETER] OF AN ASS',<span class="x" onmousemove="('comment',' Ex. XIII, 13.');"><sup>10</sup></span> 'FIRSTLING [PETER] OF AN ASS',<span class="x" onmousemove="('comment',' Ibid. XXXIV, 20.');"><sup>11</sup></span> TWICE [TO TEACH] [THAT THE LAW OF THE FIRSTBORN DOES NOT APPLY] UNTIL THAT WHICH GIVES BIRTH IS AN ASS AND THAT WHICH IS BORN IS AN ASS. AND WHAT IS THE LAW WITH REFERENCE TO EATING THEM?<span class="x" onmousemove="('comment',' The animals born which do not resemble their mother.');"><sup>12</sup></span> IF A CLEAN ANIMAL GAVE BIRTH TO A SPECIES OF UNCLEAN ANIMAL, IT IS PERMITTED TO BE EATEN. BUT IF AN UNCLEAN ANIMAL GAVE BIRTH TO A SPECIES OF A CLEAN ANIMAL, IT IS FORBIDDEN TO BE EATEN, FOR THAT WHICH GOES FORTH FROM THE UNCLEAN IS UNCLEAN AND THAT WHICH GOES FORTH FROM THE CLEAN IS CLEAN.