1 Samuel 2:18-20

18 In the meantime the boy Samuel continued to serve the LORD, wearing a sacred linen apron.

19 Each year his mother would make a little robe and take it to him when she accompanied her husband to offer the yearly sacrifice.

20 Then Eli would bless Elkanah and his wife, and say to Elkanah, "May the LORD give you other children by this woman to take the place of the one you dedicated to him." After that they would go back home.