Parashas Shemos · Passuk 4:25
Chabad.org — English translation + Rashi
Torah Temimah points to Yerushalmi Nedarim 3:9 (verified).
Sefaria — Exodus 4:25
Sefaria — Yerushalmi Nedarim 3:9
English: ““Tzipporah took a flint and cut off her son’s foreskin.” The Yerushalmi records three interpretations of whose “feet” she touched: Moses’s, the angel’s, or the infant’s.”
In context: See the cited source for the full section.
Yerushalmi interpretation of “and touched his feet”
The Yerushalmi preserves three interpretations of the unusual phrase “she touched his feet,” all connecting Tzipporah’s action directly with the circumcision and the danger confronting Moses or his son.