Leviticus 4:4

4:4 He must bring the bull to the entrance of the Meeting Tent before the Lord, lay his hand on the head of the bull, and slaughter the bull before the Lord.

Leviticus 4:15

4:15 the elders of the congregation must lay their hands on the head of the bull before the Lord, and someone must slaughter the bull before the Lord.

Leviticus 4:24

4:24 He must lay his hand on the head of the male goat and slaughter it in the place where the burnt offering is slaughtered before the Lord – it is a sin offering.