(4) Hadith 4 of the book of revelation by Sahih al-Bukhari

قَالَ ابْنُ شِهَابٍ‏‏‏‏‏‏ٍ‏‏‏‏: وَأَخْبَرَنِي أَبُو سَلَمَةَ بْنُ عَبْدِ الرَّحْمَنِ‏‏‏‏‏‏ٍ‏‏‏‏، أَنَّ جَابِرَ بْنَ عَبْدِ اللَّهِ الْأَنْصَارِيَّ‏‏‏‏‏‏ٍ‏‏‏‏، قَالَ وَهُوَ يُحَدِّثُ عَنْ فَتْرَةِ الْوَحْيِ، ‏‏‏‏‏‏فَقَالَ فِي حَدِيثِهِ:‏‏‏‏ بَيْنَا أَنَا أَمْشِي إِذْ سَمِعْتُ صَوْتًا مِنَ السَّمَاءِ فَرَفَعْتُ بَصَرِي، ‏‏‏‏‏‏فَإِذَا الْمَلَكُ الَّذِي جَاءَنِي بِحِرَاءٍ جَالِسٌ عَلَى كُرْسِيٍّ بَيْنَ السَّمَاءِ وَالْأَرْضِ، ‏‏‏‏‏‏فَرُعِبْتُ مِنْهُ فَرَجَعْتُ، ‏‏‏‏‏‏فَقُلْتُ:‏‏‏‏ زَمِّلُونِي، ‏‏‏‏‏‏فَأَنْزَلَ اللَّهُ تَعَالَى:‏‏‏‏ "يَأَيُّهَا الْمُدَّثِّرُ ‏‏‏‏ 1 ‏‏‏‏ قُمْ فَأَنْذِرْ ‏‏‏‏ 2 ‏‏‏‏"سورة المدثر آية 1-2، ‏‏‏‏‏‏فَحَمِيَ الْوَحْيُ وَتَتَابَعَ، ‏‏‏‏‏‏تَابَعَهُ عَبْدُ اللَّهِ بْنُ يُوسُفَ‏‏‏‏‏‏ٍ‏‏‏‏، وَأَبُو صَالِحٍ‏‏‏‏‏‏ٍ‏‏‏‏، وَتَابَعَهُ هِلَالُ بْنُ رَدَّادٍ‏‏‏‏‏‏ٍ‏‏‏‏، عَنِ الزُّهْرِيِّ‏‏‏‏‏‏ٍ‏‏‏‏، وَقَالَ يُونُسُ‏‏‏‏‏‏ٍ‏‏‏‏، وَمَعْمَرٌ‏‏‏‏‏‏ٍ‏‏‏‏بَوَادِرُهُ.

Sahih hadith: Narrated Jabir bin 'Abdullah Al-Ansari while talking about the period of pause in revelation reporting the speech of the Prophet While I was walking, all of a sudden I heard a voice from the sky. I looked up and saw the same angel who had visited me at the cave of Hira' sitting on a chair between the sky and the earth. I got afraid of him and came back home and said, 'Wrap me (in blankets).' And then Allah revealed the following Holy Verses (of Quran): 'O you (i.e. Muhammad)! wrapped up in garments!' Arise and warn (the people against Allah's Punishment),... up to 'and desert the idols.' (74.1-5) After this the revelation started coming strongly, frequently and regularly.

Reference: Sahih al-Bukhari 1: Chapter 1, Hadith 4.