Rashi on Numbers 33:38/רש"י על במדבר ל״ג:ל״ח

1 'על פי ה [AND AARON THE PRIEST WENT UP TO MOUNT HOR] BY THE WORD (lit., BY THE MOUTH) OF THE LORD— This phrase tells us that he died by the Divine Kiss (Bava Batra 17a; cf. Rashi on Numbers 20:26).