Leviticus 1:2; Leviticus 1:3

2 "Speak to the sons of Israel and say to them, 'When any man of you brings an offering to the LORD , you shall bring your offering of animals from the herd or the flock.

3 'If his offering is a burnt offering from the herd, he shall offer it, a male without defect; he shall offer it at the doorway of the tent of meeting, that he may be accepted before the LORD .