Reference for Bava Kamma 5:7
אֶחָד שׁוֹר וְאֶחָד כָּל בְּהֵמָה לִנְפִילַת הַבּוֹר, וּלְהַפְרָשַׁת הַר סִינַי, וּלְתַשְׁלוּמֵי כֶפֶל, וְלַהֲשָׁבַת אֲבֵדָה, לִפְרִיקָה, לַחֲסִימָה, לְכִלְאַיִם, וּלְשַׁבָּת. וְכֵן חַיָּה וָעוֹף כַּיּוֹצֵא בָהֶן. אִם כֵּן, לָמָּה נֶאֱמַר שׁוֹר אוֹ חֲמוֹר. אֶלָּא שֶׁדִּבֵּר הַכָּתוּב בַּהֹוֶה:
Both an ox and any other beast are subsumed in (the halachoth of falling into a bor), [it being written (Exodus 21:34): "Money shall he restore to its owner" — anything that has an owner.], and in separation from Mount Sinai, [it being written (Ibid. 19:13): "Or beast or man, he shall not live." "Animal" is in the category of "beast"; "Or" — to include birds (in the injunction)], and in the paying of kefel ("double payment"), [it being written (Ibid. 22:8): "For every thing of violation" — every thing which he violates.], and for returning a lost object, [(Deuteronomy 22:3): "…with every lost object of your brother."], and for unloading, [(Exodus 23:4): "…help shall you help with him." Though it is written (Ibid.): "the ass of your foe," all beasts are included, this being derived "ass" (here) — "ass," in respect to Shabbath, where it is written (Deuteronomy 5:14): "…your ox, your ass, and all of your beasts."], for muzzling, [(Ibid. 25:4): "You shall not muzzle an ox in its threshing." We derive "ox" - "ox" from Shabbath.], for kilayim (forbidden admixtures) [In respect to (forbidden) mating, though it is written (Leviticus 19:19): "Your beast you shall not mate with a different breed," animal and bird are also included by derivation, "beast" - "beast," from Shabbath. Likewise, in respect to the kilayim of driving (them together), viz. (Deuteronomy 22:10): "You shall not plow with an ox and an ass together," we derive, "ox" - "ox" from Shabbath, that the same applies to any two types of beast, animal, and bird. However, as to the Torah halachah, one is not liable unless he plows with or drives two kinds (of animal), one of which is unclean and the other, clean, as is the case with ox and ass. But the sages forbade all two kinds, even if both are unclean or both clean.], and for Shabbath, [it being written: "your ox, your ass, and all of your beasts." "Animal" is included in "beast," and "all" is a term of inclusion, to include birds.] If so, why is it written (Exodus 21:34): "ox or ass"? Scripture speaks of the common instance.