Le Deutéronome 19:4 Midrash : Sifrei Devarim

וְזֶה֙ דְּבַ֣ר הָרֹצֵ֔חַ אֲשֶׁר־יָנ֥וּס שָׁ֖מָּה וָחָ֑י אֲשֶׁ֨ר יַכֶּ֤ה אֶת־רֵעֵ֙הוּ֙ בִּבְלִי־דַ֔עַת וְה֛וּא לֹא־שֹׂנֵ֥א ל֖וֹ מִתְּמֹ֥ל שִׁלְשֹֽׁם׃

Or, voici dans quel cas le meurtrier, en s’y réfugiant, aura la vie sauve: s’il a frappé son prochain sans intention, n’ayant pas été son ennemi antérieurement.

Sifrei Devarim

(Devarim 19:4) "And this is the dvar of the slayer": From here they ruled: If a slayer fled to his city of refuge and the people of that city wished to honor him, he must tell them: "I am a slayer." If they persist, he may accept their homage, (it being written "And this is dvar [lit., "the word"] of the slayer" [i.e., he must tell them "I am a slayer"]).