Deuteronomy 12:14-15

but in the place which the LORD chooses in one of your tribes, there you shall offer your burnt offerings, and there you shall do all that I command you. “However, you may slaughter and eat meat within any of your gates, whatever you desire, according to the blessing of the LORD your God which He has given you; the unclean and the clean may eat of it, as of the gazelle and the deer.