Parashas Beshalach · Passuk 13:19
Chabad.org — English translation + Rashi
Torah Temimah points to Pesachim 67a (verified).
Sefaria — Exodus 13:19
Sefaria — Mechilta
English: One who is tamei from a corpse is permitted to enter the camp of the Leviyim; and not only one who is tamei from a corpse, but even the corpse itself, as it is stated “And Moshe took the bones of Yosef with him” — what is “with him”? With him in his partition, with him in the camp of the Leviyim.
In context: See the cited source for the full section.
Derash on the verse.
Even a corpse itself is permitted within the camp of the Leviyim, as demonstrated by Moshe’s transport of Yosef’s bones “with him.”