(27) باب قَوْلِ النَّبِيِّ صلى الله عليه وسلم: «لَوْ تَعْلَمُونَ مَا أَعْلَمُ لَضَحِكْتُمْ قَلِيلاً، وَلَبَكَيْتُمْ كَثِيرًا»
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said, "If you knew that which I know you would laugh little and weep much."
Reference: Sahih al-Bukhari 6485
In-book reference: Book 81, Hadith 74
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 76, Hadith 492