Targum Pseudo-Jonathan on Genesis 3:15 (Etheridge, 1862) — Sefaria version 'The Targum of Jonathan ben Uzziel, trans. J. W. Etheridge, London, 1862' (Sefaria license: Public Domain) (public domain)
And I will put enmity between thee and the woman, and between the seed of thy son, and the seed of her sons; and it shall be when the sons of the woman keep the commandments of the law, they will be prepared to smite thee upon thy head; but when they forsake the commandments of the law, thou wilt be ready to wound them in their heel. Nevertheless for them there shall be a medicine, but for thee there will be no medicine; and they shall make a remedy for the heel in the days of the King Meshiha.
Reproduced in full. Translation: Sefaria version 'The Targum of Jonathan ben Uzziel, trans. J. W. Etheridge, London, 1862' (Sefaria license: Public Domain) (Public domain).
In Jewish Roots of Mary
Why it is cited
A second Targum with the same messianic reading — 'in the days of the King Meshiha' — in a public-domain translation. Pitre cites Neofiti; this is the freely readable parallel.
Notes
Key phrase verbatim ('they shall make a remedy for the heel in the days of the King Meshiha'). Sefaria labels this text 'Targum Jonathan on Genesis' (= Pseudo-Jonathan).