Chabad.org — English translation + Rashi
Torah Temimah points to Horayos 8a (unit 7; single primary locus per emergency Core plan).
E-Daf.com — Horayos 8a
HebrewBooks / Shas PDF
English: Here it is written “and does one of all the commandments of Hashem,” and of the community the same — just as there it is a matter whose intentional violation is kares and whose inadvertent is chatas, so here.
Kares/chatas threshold for nasi — the nasi’s chatas, like the communal, applies only to kares-level prohibitions.
The nasi brings his special chatas only for those prohibitions whose intentional violation incurs kares and whose inadvertent violation incurs a private chatas. The parallel language with the communal offering transfers the same limitation to the nasi’s case.