(Beraisa): One may not stand an animal at an inn, even males (animals) next to males (idolaters) and females (animals) next to females (idolaters) and certainly not males (animals) next to females (idolaters) and females (animals) next to males (idolaters).

Question: What is the concern of male animals next to male idolaters?

Answer: His partner will come and will not find him and she will have relations with the male animal.

Question: What is the concern of a female animal next to a female idolater?

Answer: Her partner will come and will not find her and he will have relations with the female animal.

(R. Chagai citing R. Zeirah): It is not specifically a Jew's animal that should not be secluded with an idolater, as even if it is an idolater's animal rented to a Jew, the Jew should not allow the animal to be secluded with another idolater, in order that the idolater should not have relations with it (as the Jew will transgress the Torah prohibition of 'Don't put a stumbling block before the blind').

Question: According to that, even if a Jew rented an idolater's animal, it should be prohibited to return it to its owner, as he might be causing the owner to stumble by having relations with it?

Answer: An idolater is suspected only that he will have relations with another person's animal, but not his own, as he would not want to cause his own animal to become sterile.