(42) باب حِفْظِ الْعِلْمِ
Narrated Abu Huraira:
I have memorized two kinds of knowledge from Allah's Messenger (ﷺ) . I have propagated one of them to you and if I propagated the second, then my pharynx (throat) would be cut (i.e. killed). (ID)
Reference (ID): Sahih al-Bukhari 120 (ID)
In-book reference (ID): Book 3, Hadith 62 (ID)
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 1, Book 3, Hadith 121 (ID)