Sahih Muslim Book 19, Hadith Number 4429.

Chapter : The persecution of the Holy Prophet (may peace be upon him) at the hands of the infidels and hypocrites.

It has been narrated on the authority of Aswad b. Qais who said: I heard Jundub b. Sufyan say: The Messenger of Allah (may peace be upon him) fell ill and did not wake up for two or three nights (for prayers) A woman came to him and said: Muhammad, I hope that your satan has left you. I haven’t seen him approach you for two or three nights. The narrator says: At this, Allah, the Glorious and Exalted, revealed: “By the Glorious…”