Ibn Ezra on Leviticus 7:35

זאת. זאת שכר משחת אהרן או משחת בניו נגידות: THIS IS THE CONSECRATED PORTION. This is the reward of the consecration of Aaron or of the consecration of his sons. The word mishchat (consecrated portion) means leadership.⁸⁰According to I.E. our verse should be explained, this is Aaron’s (or his sons’) reward for holding the office of leadership, i.e., kohen.