וַיֹּאמֶר֮ מֹשֶׁה֒ בְּזֹאת֙ תֵּֽדְע֔וּן כִּֽי־יְהוָ֣ה שְׁלָחַ֔נִי לַעֲשׂ֕וֹת אֵ֥ת כָּל־הַֽמַּעֲשִׂ֖ים הָאֵ֑לֶּה כִּי־לֹ֖א מִלִּבִּֽי׃
And Moses said: ‘Hereby ye shall know that the LORD hath sent me to do all these works, and that I have not done them of mine own mind.
Targum Jonathan on Numbers
And Mosheh said, By this you shall know that the Lord hath sent me to do all these works, and that (I do them) not from the thoughts of my heart.