TT #109 · Parshas Shemini · Aliyah 5 · Passuk 8
Chabad.org — Vayikra Chapter 11 with Rashi
English: You shall not eat of their flesh, and you shall not touch their carcasses; they are impure for you.
Rosh Hashanah 16b.
E-Daf.com — Rosh Hashanah 16b (Tsurras Hadaf)
וּבְנִבְלָתָם לֹא תִגָּעוּ. תַּנְיָא, יָכוֹל יְהוּ יִשְׂרָאֵל מֻזְהָרִין עַל מַגַּע נְבֵלָה, תַּלְמוּד לוֹמַר... אֶלָּא מַה תַּלְמוּד לוֹמַר וּבְנִבְלָתָם לֹא תִגָּעוּ – בָּרֶגֶל.
Contextual limitation — The phrase concerning touching carcasses is interpreted as referring to the special case of a pilgrim's festival contact, rather than creating a general prohibition on touching carcasses.
The note interprets the prohibition on contact with carcasses in connection with the obligation to maintain ritual purity for the Festival pilgrimage.