Parashas Chayei Sarah · Passuk 25:12
This is the line of Yishmael, Avraham’s son, whom Hagar the Egyptian, Sarah’s slave, bore to Avraham.
Classical on the listing of Yishmael’s line (classical source on this passuk; not listed as a numbered Torah Temimah unit here).
Lemma / focus: ואלה תלדת ישמעאל.
English: Although the line of Yishmael is counted, the essential lineage is through Yitzchak, as it is said “for through Yitzchak offspring shall be called for you.”
Derash on the verse (classical continuity) — not a formal named middah of the 13: the listing is acknowledged while the covenant priority of Yitzchak is kept in view.
The line of Yishmael is recorded, yet the essential calling of offspring remains through Yitzchak, as promised to Avraham.