וְהִצִּ֨ילוּ הָעֵדָ֜ה אֶת־הָרֹצֵ֗חַ מִיַּד֮ גֹּאֵ֣ל הַדָּם֒ וְהֵשִׁ֤יבוּ אֹתוֹ֙ הָֽעֵדָ֔ה אֶל־עִ֥יר מִקְלָט֖וֹ אֲשֶׁר־נָ֣ס שָׁ֑מָּה וְיָ֣שַׁב בָּ֗הּ עַד־מוֹת֙ הַכֹּהֵ֣ן הַגָּדֹ֔ל אֲשֶׁר־מָשַׁ֥ח אֹת֖וֹ בְּשֶׁ֥מֶן הַקֹּֽדֶשׁ׃
피를 보수하는 자의 손에서 살인자를 건져내어 그가 피하였던 도피성으로 돌려 보낼 것이요 그는 거룩한 기름 부음을 받은 대제사장의 죽기까지 거기 거할 것이니라
Sefer HaChinukh
The commandment on the court to send one who smites a soul inadvertently from his city to the cities of refuge and upon the killer himself to go there: That the courts of Israel were commanded to send one who smites a soul inadvertently from his city and restore him in the cities of refuge, as it is stated (Numbers 35:25), "and the community shall restore him to his city of refuge, etc. and there he shall remain until the death of the high priest." And also the smiter, he too, is included in this positive commandment, as it is stated about him (Numbers 35:28), "For he shall dwell in his city of refuge until the death of the high priest."