The Prophet ﷺ said, "I was in a seclusion in the cave of Hira........."(similar to the narration related by ʿAli bin Al-Mubarak, 444 above).
عَنِ النَّبِيِّ ﷺ قَالَ جَاوَرْتُ بِحِرَاءٍ مِثْلَ حَدِيثِ عُثْمَانَ بْنِ عُمَرَ عَنْ عَلِيِّ بْنِ الْمُبَارَكِ