Exodus 30:19

30:19 and Aaron and his sons must wash their hands and their feet from it. ¹ 

Exodus 39:27

39:27 They made tunics of fine linen – the work of a weaver, for Aaron and for his sons –

Exodus 40:14

40:14 You are to bring ²  his sons and clothe them with tunics

Exodus 40:31

40:31 Moses and Aaron and his sons would wash their hands and their feet from it.

¹ tn That is, from water from it.

² tn The verb is also “bring near” or “present.”