Midrash su Levitico 14:32

15) (Vayikra 14:32) ("This is the law for him with a plague-spot of leprosy whose means do not suffice in his cleansing") I might think that a woman who brought a sin-offering when poor and thereafter became rich, completes as a poor woman; it is, therefore, written "This" (to exclude the above).

16) "the law for him with a plague-spot of leprosy": We are hereby taught that if a poor man brought the offering of a rich man, it is valid. I might think that if a rich man, likewise, brought the offering of a poor man, it is valid; it is, therefore, written (to exclude this): "This is the law, etc." "for him with a plague-spot of leprosy, etc.": We are hereby taught a man may bring a poor man's offering for his son, for his daughter and for his manservant and maidservant, and feed them from the sacrifices. I might think that he could also bring a poor man's offering for his wife; it is, therefore, written "This." These are the words of R. Yehudah. For R. Yehudah says: A man brings a rich man's offering for his wife, and, similarly, all of her offerings for which she is liable. For thus does she write to him (in the receipt of her kethubah): "And your previous obligations to me, etc." (viz. Bava Metzia 104a)