English: “See, I have taught you” — just as I [taught] free of charge, so you [must teach] free of charge. Might this include even Mikra and Targum free of charge? The verse says “statutes and judgments” — statutes and judgments, but not Mikra and Targum.
On the daf / in context: The obligation to teach Torah free of charge is derived from Moshe’s own example. The limitation to chukim u-mishpatim (as opposed to the written text and its translation) is discussed in the sugya of teachers’ wages.
Type of Learning
Custom (derasha equating the teacher’s practice with Moshe’s free instruction).
What Is Learned
Torah must be taught free of charge, just as Moshe taught free of charge; the primary application is to the oral statutes and judgments.