Parashas Eikev · Passuk 11:19
and teach them to your children—reciting them when you stay at home and when you are away, when you lie down and when you get up;
Torah Temimah points to Kiddushin.
TT lemma: את בניכם (unit 7 of 10).
English: I know only “your sons”; whence grandsons? From Vaeschanan: “make them known to your children and your children’s children.” See Vaeschanan on that verse.
Derash on the verse (Bavli sugya) — not a formal named middah of the 13
The Gemara uses this passuk in a sugya (proof, illustration, or dispute). Named as one of R' Yishmael’s 13 or R' Eliezer’s 32 only when that move is explicit.
The duty of transmission extends to the next generation beyond the immediate son.