Exodus 29:5-9

29:5 and take the garments and clothe Aaron with the tunic, the robe of the ephod, the ephod, and the breastpiece; you are to fasten the ephod on him by using the skillfully woven waistband. 29:6 You are to put the turban on his head and put the holy diadem on the turban. 29:7 You are to take the anointing oil and pour it on his head and anoint him. 29:8 You are to present his sons and clothe them with tunics 29:9 and wrap the sashes around Aaron and his sons and put headbands on them, and so the ministry of priesthood will belong to them by a perpetual ordinance. Thus you are to consecrate Aaron and his sons.

Exodus 29:29-30

29:29 “The holy garments that belong to Aaron are to belong to his sons after him, so that they may be anointed in them and consecrated in them. 29:30 The priest who succeeds him from his sons, when he first comes to the tent of meeting to minister in the Holy Place, is to wear them for seven days.