Musar su Deuteronomio 22:10

“You shall not plow with an ox and an ass together” (Deuteronomy 22:21). We were warned with this not to plow - nor to tread - with two species, when they are joined with a yoke or with a rope. And the law is the same for driving them when they are joined. And [the reason] that it (only) spoke about plowing is [that] the verse mentioned the common [case]. And it is even forbidden to drive them with [one’s] voice. And it is forbidden to drive together two mules, [if] one is the daughter of a female horse and one is the daughter of a female donkey. And it is forbidden to drive a mule with [either] a horse or a donkey.