Targum for Isaiah 36:8

וְעַתָּה֙ הִתְעָ֣רֶב נָ֔א אֶת־אֲדֹנִ֖י הַמֶּ֣לֶךְ אַשּׁ֑וּר וְאֶתְּנָ֤ה לְךָ֙ אַלְפַּ֣יִם סוּסִ֔ים אִם־תּוּכַ֕ל לָ֥תֶת לְךָ֖ רֹכְבִ֥ים עֲלֵיהֶֽם׃

Now therefore, I pray thee, make a wager with my master, the king of Assyria, and I will give thee two thousand horses, if thou be able on thy part to set riders upon them.

Targum Jonathan on Isaiah