TT #136 · Parshas Tazria · Aliyah 2 · Passuk 14
English: But as soon as raw flesh appears on them, they shall be impure.
Chabad.org — Chumash, English translation + Rashi for Vayikra 13:14
Torah Temimah cites Sifra (Toras Kohanim) for the postponement of examination during protected days such as a groom’s wedding week.
Sifra — Vayikra 13, Midrash Sefer
English: There is a day on which a priest examines a lesion and a day on which he does not; therefore a groom who develops a lesion is given all seven days of the wedding feast for himself, his household, and his garment.
Textual derivation
Certain days are unsuitable for examining lesions; a bridegroom receives the seven days of wedding celebration for himself, his household, and his clothing.