Side-ring EXTRA · Rashi on 14:48
Rashi on Vayikra 14:48.
English: “If he comes” — at the end of the second week. “And sees that it has not spread” — this verse comes to teach about [a nega] that remained unchanged in appearance in the first and second [inspections], and what is done for it.
Unchanged nega after plastering
Rashi situates the purification of the house at the end of the second week when the affliction has not spread after plastering.