Sedra Metzora 120 words, The Rabbi Should not Pasken
And the owner will come to the Cohen and say, “I think my house is plagued” [14:35]
Rashi: even if he is a Torah scholar and knows with certainly that the house is plagued, he may say no more than, “It looks like my house is plagued”
Because the house is not ritually defiled until the declaration is made. In fact, the Cohen instructs [14:36] that the house be emptied before he pronounces the house impure, to prevent the household items becoming defiled. This time gap is designed to provide opportunity for introspection, repentance and prayer for both the Cohen and house-owner.
This is not the time for the Talmid Chacham to be sprinting from his starting block to pronounce the house is impure.