Musar על בבא קמא 183:22

Another awesome thing which befell Judah: Our sags of blessed memory have said (Sotah 7b): "All those years that Israel was in the desert, the bones of Judah were 'rolling around' in his casket, until Moses arose and implored mercy for him. He said… (Devarim 33:7): 'Hear, O L-rd, the voice of Judah' — at which his limbs reunited. But he was not yet brought to the Heavenly synod, at which Moses said (Ibid.): 'and to his people shall You bring him.' But he could not engage in halachic converse with the sages there, at which Moses said (Ibid.): 'Let his hands do battle for him', etc." All this befell him because he had said (Bereshith 43:9): "If I do not bring him [Benjamin] to you and present him to you [alive], I shall have sinned against you all the days." __ But he did bring him! But, "the curse of a sage is fulfilled even if the condition [(in this instance, bringing him back)] is fulfilled" (Makkoth 11b). And we have already said that whatever issues from a man's mouth is by Divine providence, so that the L-rd's will was being enacted here. It seems to me that the explanation is as follows: It is known that they [the brothers] placed a ban on anyone who would reveal this [(the sale of Joseph)] to our father Jacob, and they included the Shechinah in this ban, wherefore the Holy Spirit [of prophecy] was removed from our father Jacob (until the end [of the episode], where it is written (Ibid. 45:27): "And the spirit of Jacob their father revived," which Onkelos translates: "And the Holy Spirit [again] reposed upon him.") And because of this ban it was decreed upon him [Judah] that holiness depart from him entirely, (as any man who is excommunicated), wherefore Judah was constrained to accept excommunication upon himself, as it is written: "And I shall have sinned against my father all of the days."