Midrash for Genesis 45:8

“The couriers went out urgently by the king’s command, and the order was issued in the Shushan citadel; the king and Haman sat to drink, and the city of Shushan was confounded” (Esther 3:15).
“The couriers went out urgently by the king’s command… the king and Haman sat to drink.” Rabbi Ḥanin said: Anyone who says that the All-Merciful is forbearing, his innards will be forborne. Rather, He withholds His anger, but [later] collects His due. He said to the tribes: ‘You sold your brother while eating and drinking. I will do the same to you;’²³Joseph’s brothers “sat down to eat a meal” (Genesis 37:25) when they came up with the idea of selling Joseph into slavery. that is what is written: “And the king and Haman sat to drink.”
There was a certain man of Israel who went to the marketplace to purchase a litra of meat or a bunch of greens; a Persian choked him and said to him: ‘Tomorrow I will kill you and spend your money’; that is what is written: “And the city of Shushan was confounded.”
Rabbi Yissakhar of Kefar Mandi said: See how long it takes for the resolution [of the statement] of one who forgave, saying: “It was not you who sent me here, but rather God…” (Genesis 45:8).²⁴Joseph to his brothers. The punishment for the sale of Joseph was in effect until the days of Mordekhai; for one who does not forgive, all the more so.