Exodus 18:24 Midrash

וַיִּשְׁמַ֥ע מֹשֶׁ֖ה לְק֣וֹל חֹתְנ֑וֹ וַיַּ֕עַשׂ כֹּ֖ל אֲשֶׁ֥ר אָמָֽר׃

So Moses hearkened to the voice of his father-in-law, and did all that he had said.

Read midrashic interpretation of Exodus 18:24: and classical rabbinic exegesis.