Mishkat al-Masabih 10 The Rites of Pilgrimage كتاب المناسك 87

وَعَنْ عَائِشَةَ قَالَتْ: إِنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: ” مَا مِنْ يَوْمٍ أَكْثَرَ مِنْ أَنْ يُعْتِقَ اللَّهُ فِيهِ عَبْدًا مِنَ النَّارِ مِنْ يَوْمِ عَرَفَةَ وَإِنَّهُ لَيَدْنُو ثُمَّ يُبَاهِي بِهِمُ الْمَلَائِكَةَ فَيَقُولُ: مَا أَرَادَ هَؤُلَاءِ ” . رَوَاهُ مُسلم

‘A’isha reported God’s messenger as saying, “There is no day when God sets free more servants from hell than the day of ‘Arafa. He draws near, then praises them (Literally, ‘boasts of them.’) to the angels saying, ‘What do these want ?”’(The reference is probably to their undertaking the vicissitudes of the Pilgrimage) Muslim transmitted it.