Its really a bit of a straight forward question Rashi tells us in his Pirush a "Klall" that "Kli Cheres Metameh Beavir" I would please like to know what his Mekor is I think its a Droshoh on a Possuk somewhere in Chazal in either Parshas Shemini or Parshas Chukas would you be kind enough to put me out of my misery and give me the exact Mekor

Shkoyach

Boruch Kahan London, London England