1 Samuel 1:17

1:17 Eli replied, “Go in peace, and may the God of Israel grant the request that you have asked of him.”

1 Samuel 1:23

1:23 So her husband Elkanah said to her, “Do what you think best. ¹  Stay until you have weaned him. May the Lord fulfill his promise.” ² 

So the woman stayed and nursed her son until she had weaned him.

[1:23]  ¹ tn Heb “what is good in your eyes.”

[1:23]  ² tn Heb “establish his word.” This apparently refers to the promise inherent in Eli’s priestly blessing (see v. 17).