Sunan Ibn Majah Book 25, Hadith 133
“There is no day on which Allah ransoms
more
slaves from the Fire than the Day of ‘Arafah. He draws closer and
closer, then He boasts about them before the angels and says: ‘What
do
these people want?’”
“I have forgiven them, except for the wrongdoer, with whom I will settle the score in favor of the one whom he wronged.” He said: “O Lord, if You will, then grant Paradise to the one who is wronged, and forgive the wrongdoer.” No response came (that evening).The next day at Muzdalifah he repeated the supplication, and received a response to what he asked for. He (the narrator) said: “The Messenger of Allah (ﷺ) laughed,” or he said, “He smiled. Abu Bakr and ‘Umar said to him: ‘May my father and mother be ransomed for you, this is not a time when you usually laugh. What made you laugh, may Allah make your years filled with laughter?’ He said: ‘The enemy of Allah, Iblis, when he came to know that Allah answered my prayer and forgiven my nation, took some dust and started to sprinkle it on his head, uttering cries of woe and doom, and what I saw of his anguish made me laugh.’”
“I heard ‘Abdur-Rahman bin Ya’mur Dili say: ‘I saw the Messenger of Allah (ﷺ) when he was standing at ‘Arafat, and some people from Najd came to him and said: “O Messenger of Allah, what is Hajj?” He said: “Hajj is ‘Arafah. Whoever comes before Fajr prayer on the night of Jam’, he has completed his Hajj. The days at Mina are three. ‘But whosoever hastens to leave in two days, there is no sin on him and whosoever stays on, there is no sin on him.’” Then he seated a man behind him on his mount and he started calling out these words.’”
Another chain reports a similar hadith.