It is narrated from Sayyiduna Usayd bin Hudayr (may Allah be pleased with him) that he was reciting on the roof of his house, and he had a very beautiful voice. He narrates: While I was reciting, suddenly something like a cloud covered me. At that time my wife was in the house and the horse was tethered in the courtyard, and I feared that (through the horse taking fright) my wife might miscarry, so I stopped reciting. At this the Prophet (peace and blessings be upon him) said: "You should have continued reciting, for it was an angel who had come to listen to the Qur'an." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it, because Sufyan bin Uyaynah narrated it from al-Zuhri in mursal form.