Reference for Yoma 126:2
אוציא אלו שאין ראוין לפתח אהל מועד ולא אוציא פרת חטאת ושעיר המשתלח שהוא ראוי לבוא אל פתח אהל מועד ת"ל לה' מי שמיוחדין לה' יצאו אלו שאין מיוחדין לשם
Thus I would exclude only those which are not fit to be offered up at the entrance of the tent of meeting, but I would not exclude [the cow for the sin-offering<span class="x" onmousemove="('comment',' The red heifer. Tosaf. supports Rashi's elimination of this reference to the red heifer, because the latter was not brought to the entrance of the tent of meeting, hence is logically excluded from the present discussion.');"><sup>2</sup></span> and] the he-goat-to-be-sent-away, which are fit to be brought to the entrance of the tent of meeting, therefore the text reads: 'Unto the Lord' i.e., only t assigned to the Lord, to the exclusion of such as are not assigned to the Lord.