MISHNAH: ELEVEN WAYS IN WHICH KODESH IS MORE STRINGENT THAN TERUMAH (cont.)
The eleventh way is that an Onen (one who lost a close relative) or Mechusar Kipurim (one who did not yet offer the Korban required to make him Tahor for Kodesh) require Tevilah before they may eat Kodesh foods, while they are permitted to eat Terumah.
THE FIRST STRINGENCY OF KODESH OVER TERUMAH: IMMERSING UTENSILS INSIDE OF OTHER UTENSILS
What is the reason one may not immerse utensils inside of other utensils for Kodesh?
(R. Ila): The weight of the inner utensil upon the outer utensil constitutes a Chatzitzah.
Question: But the fact that the fifth stringency is because of a Chatzitzah implies that this one is not because of a Chatzitzah!
Answer: Both are because of Chatzitzah, and both cases are needed for a different Chidush.
R. Ila is consistent with another statement he made.
R. Ila said that there are only ten stringencies in our Mishnah (the two cases of Chatzitzah being considered as one).
The first five apply to Kodesh as well as Chulin prepared with the Taharah of Kodesh.
The last five apply only to Kodesh, but not to Chulin prepared with the Taharah of Kodesh.
The difference is that the first five cases deal with a concern for a d'Oraisa law.
Therefore, the Rabanan enacted those stringencies to apply to Chulin prepared with Taharah of Kodesh as well.