(22) بَابُ قَوْلِ اللَّهِ عَزَّ وَجَلَّ: {وَهَلْ أَتَاكَ حَدِيثُ مُوسَى إِذْ رَأَى نَارًا} إِلَى قَوْلِهِ: {بِالْوَادِي الْمُقَدَّسِ طُوًى}
Narrated Malik bin Sasaa:
Allah's Messenger (ﷺ) talked to his companions about his Night Journey to the Heavens. When he reached the fifth Heaven, he met Aaron. (Gabriel said to the Prophet), "This is Aaron." The Prophet (ﷺ) said, "Gabriel greeted and so did I, and he returned the greeting saying, 'Welcome, O Pious Brother and Pious Prophet."
Reference: Sahih al-Bukhari 3393
In-book reference: Book 60, Hadith 67
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 4, Book 55, Hadith 606