Reference for Sotah 29:1

ומקטירו בכלי שרת בכלי שרת מקטיר ליה אלא אימא מעלהו בכלי שרת להקטירו

and fumigates it in a ministering vessel'. He fumigates it in a ministering vessel' [you say]!<span class="x" onmousemove="('comment',' [Surely the fumigation does not take place at this stage! Rashi deletes the words 'in a ministering vessel', as the question is concerned only with the act of fumigation]. ');">¹</span>

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