Comentario sobre Exodo 10:26

פרסה is the hoof of the foot; in old French plante.

וגם מקננו ילך עמנו, "our cattle also shall go with us, etc." Why did Moses have to add that the Israelites would take along their own cattle seeing that Moses had already said they would even take along livestock donated by Pharaoh? Obviously, Pharaoh's animals would be in addition to their own! We have to assume that Moses was concerned lest Pharaoh misunderstand the words גם אתה as referring to the children. Pharaoh might have understood that Moses had demanded that not only would they take their children but they demanded that Pharaoh give them in addition of his own herds. To avoid such a possible misunderstanding, Moses, as if correcting himself, said "also our cattle will go with us. This is a very forced explanation. Another difficulty in the verse is Moses' having to justify that they would take their cattle because they would use some of it as sacrifices. What new facts did he reveal to Pharaoh with these words? If he wanted to tell Pharaoh that their sacrificial acts would include the slaughtering of sheep (a sacred animal in Egypt) he had already told Pharaoh this when he told him that Pharaoh himself would supply animals for that purpose. Another curious statement by Moses in this verse is his comment "we do not know what we must serve the Lord until we get there." Apparently Moses indicated that he did not know how many animals G'd would require of them and that was also the reason that he expected Pharaoh to contribute to the number of animals. However, if that were the reason, Moses should have spoken not about "what" would be required but about "how much" would be required.

The hoof of the foot. Rashi is answering the question: פרסה implies that Moshe requested only the animals with “split hooves” ( מפרסת פרסה ). Yet this cannot be, for in the beginning of the verse, does it not say, “Our own flocks will also go with us,” implying every animal? Therefore Rashi explains that פרסה means “the hoof of the foot, (plante in Old French).”