Good Manners and Form (Al-Adab)
Ṣaḥīḥ al-Bukhārī 6214
ثُمَّ فَتَرَ عَنِّي الْوَحْىُ، فَبَيْنَا أَنَا أَمْشِي سَمِعْتُ صَوْتًا مِنَ السَّمَاءِ، فَرَفَعْتُ بَصَرِي إِلَى السَّمَاءِ فَإِذَا الْمَلَكُ الَّذِي جَاءَنِي بِحِرَاءٍ قَاعِدٌ عَلَى كُرْسِيٍّ بَيْنَ السَّمَاءِ وَالأَرْضِ
thumma fatara ʿannī al-waḥāu, fabaynā anā amshī samiʿtu ṣawtan mina as-samāʾi, farafaʿtu baṣarī ilā as-samāʾi fa-idhā al-malaku adh-dhī jāʾanī biḥirāʾin qāʿidun ʿalā kursiyyin bayna as-samāʾi wa-l-arḍi
Transliteration generated from the Arabic vowel marks
The full narration
Narrated Jabir bin `Abdullah:That he heard Allah's Messenger (ﷺ) saying. "Then there was a pause in the revelation of the Divine Inspiration to me. Then while I was walking all of a sudden I heard a voice from the sky, and I raised my sight towards the sky and saw the same angel who had visited me in the cave of Hira,' sitting on a chair between the sky and the earth
Source
Ṣaḥīḥ al-Bukhārī · 6214