Halakhah sobre Números 20:8

Other scholars advance less obvious sources as constituting the scriptural basis for obligations concerning za'ar ba'alei ḥayyim. R. Moses ibn Habib, Yom Teru'ah, Rosh ha-Shanah 27a, finds a source for such obligations in the verse "… and thou shalt bring forth to them water out of the rock; so thou shalt give the congregation and their cattle drink" (Numbers 20:8). Water was miraculously produced from the rock for the benefit of animals as well as of humans. Water was produced for the animals, states R. Moses ibn Habib, in order to obviate za'ar ba'alei ḥayyim. In the opinion of this authority, Scripture specifically records that the miracle was performed on behalf of animals as an admonition to man directing him likewise to alleviate the suffering of brute creatures. R. Moses Sofer, Hagahot Hatam Sofer, Baba Mezi'a 32b, similarly regards obligations with regard to animal welfare as predicated upon emulation of divine conduct. Thus Hatam Sofer cites the verse "And His tender mercies are over all His works" (Psalms 145:9) as imposing an obligation upon man to exercise compassion toward animals. Earlier, Sefer Haredim, chapter 4, expressed the opinion that compassion toward animals is mandated by the commandment "and you shall walk in His ways" (Deuteronomy 28:9). Rambam, Hilkhot De'ot 1:6, apparently basing himself upon Sifre, Deuteronomy 11:22, renders the verse as meaning, "just as He is merciful so also shall you be merciful."

If you own animals or birds (poultry), and it is your responsibility to feed them, you are not allowed to eat anything until you feed them, as it is written (Deuteronomy 11:15): "And I will put grass in your fields for your cattle (animals) and you will eat and be satisfied." Thus the Torah has given preference to feeding the cattle [animals] before the feeding of man. But as regards drinking, man comes first as it is written (Genesis 24:14): [Rivkah said] "Drink first and I will also give your camels to drink." Similarly it is written (Numbers 20:8): "And you will give drink to the congregation and to their animals."