Hadithcore
Sahih al-Bukhari, 2437b
sahih

Narrated Salama:

the above narration (Hadith 616) from Ubai bin Ka`b: adding, "I met the sub-narrator at Mecca later on, but he did not remember whether Ka`b had announced what he had found one year or three years."

حَدَّثَنَا عَبْدَانُ، قَالَ أَخْبَرَنِي أَبِي، عَنْ شُعْبَةَ، عَنْ سَلَمَةَ، بِهَذَا قَالَ فَلَقِيتُهُ بَعْدُ بِمَكَّةَ، فَقَالَ لاَ أَدْرِي أَثَلاَثَةَ أَحْوَالٍ أَوْ حَوْلاً وَاحِدًا‏.‏

References2 variants
In-Book Reference
Book 45, Hadith 13
USC-MSA web (English) reference
Vol. 3, Book 42, Hadith 617 (deprecated numbering scheme)