Deuteronomy 14:4

14:4 These are the animals you may eat: the ox, the sheep, the goat,

Deuteronomy 22:10

22:10 You must not plow with an ox and a donkey harnessed together.

Deuteronomy 25:4

25:4 You must not muzzle your ¹  ox when it is treading grain.

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¹ tn Heb “an.” By implication this is one’s own animal.