Mustadrak al-Hakim — Hadith 4507

It is narrated from Sayyidah Aishah (may Allah be pleased with her) that when the Prophet (peace and blessings be upon him) was taken on the Night Journey to al-Masjid al-Aqsa, in the morning the people began talking about it. Thereupon some of those who had believed in him (peace and blessings be upon him) and affirmed him (peace and blessings be upon him) apostatized. Some of the polytheists hurried to Sayyiduna Abu Bakr (may Allah be pleased with him) and said: "Have you heard anything about your companion? He claims that last night he was taken on a journey to Bayt al-Maqdis!" Sayyiduna Abu Bakr (may Allah be pleased with him) asked: "Did he really say that?" They said: "Yes." Sayyiduna Abu Bakr (may Allah be pleased with him) said: "If he said that, then he has certainly spoken the absolute truth." They asked: "Do you even affirm that he went to Bayt al-Maqdis last night and came back before morning?!" He said: "Yes. I affirm him in something even more far-fetched than that: I affirm him without hesitation in the news that comes from the heavens, that is revelation, morning and evening." For this reason he came to be called Abu Bakr al-Siddiq.
This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it. Indeed, Muhammad bin Kathir al-San'ani is saduq (truthful).