Parashas Masei · Passuk 35:32 · TT note 3
Chabad.org — English translation + Rashi
Torah Temimah points to Makkos 11b (TT note on “לָשֶׁבֶת בָּאָרֶץ”).
English: Abaye said: We hold that if his verdict was completed and he died, they bring his bones there [to the city of refuge], for it is written “to return to dwell in the land until the death of the priest” — what dwelling is in the land? Say: burial.
Even a posthumous “dwelling” (burial) in the city of refuge fulfills the exile when the verdict preceded death.
If the unintentional killer dies after judgment but before reaching the city, his bones are interred there as the fulfillment of the exile requirement.