Sayyiduna Abdullah (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) said: "Recite." I said: "O Messenger of Allah, shall I recite to you when it was revealed to you?" He (peace and blessings be upon him) said: "Yes." So I recited Surah al-Nisa' until I reached this verse: "So how will it be when We bring from every nation a witness, and bring you (O Prophet) as a witness over these?" [Surah al-Nisa': 41]. He (peace and blessings be upon him) said: "That is enough now." I turned to him (peace and blessings be upon him), and tears were flowing from his (peace and blessings be upon him) eyes.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 8428