Commentary for II Kings 15:20

וַיֹּצֵא֩ מְנַחֵ֨ם אֶת־הַכֶּ֜סֶף עַל־יִשְׂרָאֵ֗ל עַ֚ל כָּל־גִּבּוֹרֵ֣י הַחַ֔יִל לָתֵת֙ לְמֶ֣לֶךְ אַשּׁ֔וּר חֲמִשִּׁ֧ים שְׁקָלִ֛ים כֶּ֖סֶף לְאִ֣ישׁ אֶחָ֑ד וַיָּ֙שָׁב֙ מֶ֣לֶךְ אַשּׁ֔וּר וְלֹא־עָ֥מַד שָׁ֖ם בָּאָֽרֶץ׃

And Menahem exacted the money of Israel, even of all the mighty men of wealth, of each man fifty shekels of silver, to give to the king of Assyria. So the king of Assyria turned back, and stayed not there in the land.

Radak on II Kings