Al-Hajj 22:36

Walbudna jaAAalnahalakum min shaAAa-iri Allahi lakum feehakhayrun fathkuroo isma Allahi AAalayhasawaffa fa-itha wajabat junoobuhafakuloo minha waatAAimoo alqaniAAa walmuAAtarrakathalika sakhkharnaha lakum laAAallakumtashkuroon

And the camels and cattle We have appointed for you as among the symbols [i.e., rites] of Allāh; for you therein is good. So mention the name of Allāh upon them when lined up [for sacrifice]; and when they are [lifeless] on their sides, then eat from them and feed the needy [who does not seek aid] and the beggar. Thus have We subjected them to you that you may be grateful.

The big animals of sacrifice (like camels and cows) are made by Us among the symbols of Allah for you, in which there is much good for your benefit. So recite the name of Allah over them as they are lined up (for sacrifice). Then, once their flanks fall down (after slaughter), eat of them and feed the one who is content and the one who wishes to receive. Thus We have made them (the animals) subjugated to you, so that you may be grateful.