Sahih Muslim 2333
Sahih Muslim · Book 43: The Book of Virtues · The Prophet (SAW) Sweated When It Was Cold, And When The Revelation Came To Him
'A'isha reported that Harith b. Hisham asked Allah's Apostle (ﷺ):
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ ، حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ ، ح وَحَدَّثَنَا أَبُو كُرَيْبٍ ، حَدَّثَنَا أَبُو أُسَامَةَ ، وَابْنُ، بِشْرٍ جَمِيعًا عَنْ هِشَامٍ ، ح وَحَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ ، - وَاللَّفْظُ لَهُ - حَدَّثَنَا مُحَمَّدُ بْنُ بِشْرٍ ، حَدَّثَنَا هِشَامٌ ، عَنْ أَبِيهِ ، عَنْ عَائِشَةَ ، أَنَّ الْحَارِثَ بْنَ هِشَامٍ، سَأَلَ النَّبِيَّ صلى الله عليه وسلم كَيْفَ يَأْتِيكَ الْوَحْىُ فَقَالَ " أَحْيَانًا يَأْتِينِي فِي مِثْلِ صَلْصَلَةِ الْجَرَسِ وَهُوَ أَشَدُّهُ عَلَىَّ ثُمَّ يَفْصِمُ عَنِّي وَقَدْ وَعَيْتُهُ وَأَحْيَانًا مَلَكٌ فِي مِثْلِ صُورَةِ الرَّجُلِ فَأَعِي مَا يَقُولُ " .
How does the the wahi (inspiration) come to you? He said: At times it comes to me like the ringing of a bell and that is most severe for me and when it is over I retain that (what I had received in the form of wahi), and at times an Angel in the form of a human being comes to me (and speaks) and I retain whatever he speaks.