Мидраш к Амос 2:1

(Fol. 22) R. Dimi of Nahardea brought dry figs in a boat. The Exilarch ordered Raba: "Go and see whether he is a scholar; then you may hold the market for him." Raba said to R. Ada b. Ababa: "Go and examine him." He questioned him about something of the Law, which he could not answer. So R. Dimi said to him: "Is the master Raba?" R. Ada tapped him upon his sandal [to silence him] and said to him: "Between Raba and me there is a great difference; but, nevertheless, I am your master, while Raba is the master of your master." In consequence of this, the market was not held for him; and R. Dimi lost on his dry figs, and came to complain before R. Joseph, saying: "See, master, what was done to me!" And he answered: "The One who neglected not to take revenge for the wrong inflicted on the king of Edom shall not neglect to avenge for the wrong inflicted upon you." [Concerning Edom] it is written (Amos 2, 1) Thus hath said the Lord, for three transgressions of Moab and for four will I not turn away their punishment, because they burned the bones of the king of Edom info lime. Consequently R. Ada died. Then R. Joseph said: "I have caused his punishment. I have cursed him." R. Dimi said: "I have caused his punishment, for he had caused my loss on the dry ligs." Abaye said: "I have caused his punishment, for he used to eay to the Rabbis: "While ye are nibbling bones in the college of Abaye, would it not be better for you to eat fat meat in the college of Raba?" And Raba said: "I have caused his punishment, for, when he used to go for meat, he used to say to the butcher: 'You must give me meat before you give it to the servant of Raba, as I am better than he.'" R. Nachman b. Isaac said: "I have punished him," for R. Nachman b. Isaac was the head of the preachers in the days before festivals; and every day, before preaching, he reviewed his sermon together with R. Ada b. Ahaba. On that day, however, on which R. Ada b. Ahaba died, R. Papa and R. Huna b. R. Joshua detained him, because they had been absent from the concluding lecture and they therefore asked of him that he should explain to them what Raba lectured concerning cattle tithe, and he repeated for them all what Raba said. Meanwhile the time for R. Nachman's preaching arrived, and the Rabbis said to R. Nachman: "Why does the master sit? It is already dawning, and you have to go to preach." And he answered: "I am sitting and waiting for the coffin of R. Ada b. Ahaba." And, indeed, R. Ada's death was soon aanounced. It seems, therefore, that R. Nachman was the cause of his punishment.