Arabic (Original)
وَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَالَّذِي نَفْسُ مُحَمَّدٍ بِيَدِهِ لَوْ تَعْلَمُونَ مَا أَعْلَمُ لَضَحِكْتُمْ قَلِيلًا وَلَبَكَيْتُمْ كَثِيرًا.
English Translation
The Messenger of Allah (peace be upon him) said: 'By the One in Whose hand is Muhammad's soul, if you knew what I know, you would laugh little and weep much.'