John Gill Commentary 2 Kings 5:4

"And one went in, and told his lord, saying, Thus and thus said the maiden that is of the land of Israel." — 2 Kings 5:4 (ASV)

And one went in and told his lord
What the girl had said to her mistress; one of the servants of the house that overheard it; or rather, Naaman went and told his lord the king of Syria; for as this was said to his wife, no doubt she told it to her husband, and not a servant; and the following words require this sense, and is the sense of most Jewish commentators:

saying, thus and thus said the maid that is of the land of Israel ;
who for her wit and beauty might be well known at court by the name of the Israelitish girl.