TT #25 · Parshas Tazria · Aliyah 1 · Passuk 3
English: On the eighth day the flesh of his foreskin shall be circumcised.
Chabad.org — Chumash, English translation + Rashi for Vayikra 12:3
Torah Temimah cites Yerushalmi Kiddushin 1:7.
Sefaria — Yerushalmi Kiddushin 1:7
English: From here it is derived that the father is commanded to circumcise his son.
Textual derivation
The verse establishes the father's obligation to circumcise his son.