Reference for Menachot 102:9

א"כ לכתוב קרא הכהן המשיח תחתיו בניו יעשה מאי מבניו שמעת מינה תרתי

Now I might think that Aaron and his sons shall together offer one offering,<span class="x" onmousemove="('comment',' At their ordination. lubhj ,jbn');">⁸</span> the text therefore states, 'Which they shall offer unto the Lord', Aaron shall off his separately and his sons theirs separately.<span class="x" onmousemove="('comment',' The sons offer their meal-offering at their ordination only, this is known as 'the meal-offering of initiation'; whereas the High Priest must offer his daily, from the day that he is anointed and onwards.');">⁹</span>

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