Sahih al-Bukhari 4953

It is related that 'A'isha, the wife of the Prophet, may Allah bless him and grant him peace, said, " "The beginning [of the revelation] to the Messenger of Allah, may Allah bless him and grant him peace, took the form of the true dream in sleep. Whenever he had a dream, it was clear as the break of day. Then he was made to love retreat and used to go into retreat in the cave of Hira' where he would devote himself to the worship of Allah alone (and the transmitter mentioned that tahannuth means worship), continuing in this worship for a number of nights until he returned to his family and took provision for that stay. Then he would return to Khadija to restock with provision to do the same again. This lasted until the Truth came to him while he was in the cave of Hira'. "The angel came to him and said, 'Read!' THe Messenger of Allah, may Allah bless him and grant him peace, said, 'I cannot read.'" The Prophet, may Allah bless him and grant him peace, said, "He seized me and squeezed me until all the strength went out of me and then released me and said, 'Read !' I said, 'I cannot read.' Then he seized me and squeezed me a second time until all the strength when out of me and then released me. He said, 'Read !' and I said, 'I cannot read.' Then he seized me and squeezed me a thrid time and then released me, and then he said, 'Recite: In the Name of your Lord who created, created man from a blood clot. Recite: And your Lord is the Most Generous, He who taught by the pen, taught man what he did not know.' (96:1-5)" [She went on,] "Then the Messenger of Allah, may Allah bless him and grant him peace, returned with that and his heart was quaking. He came to Khadija and said, 'Wrap me up! Wrap me up!' They wrapped him up until the state of terror had left him and then he said to Khadija. "What is wrong with me? 'I am afraid for myself.' Khadija said, 'No, it is good news. By Allah, Allah would never bring disgrace upon you. By Allah, you maintain ties of kinship, speak the truth, bear people's burdens, help the destitute, give hospitality to your guests and help those who have been afflicted by calamities.' "Khadija then went with him to Waraqa ibn Nawfal ibn Asad ibn 'Abdu'l-'Uzza, Khadija's cousin, who had become Christian during the Jahiliyya. He could write in Arabic and wrote in Arabic as much of the Gospel as Allah willed. He was an old man who had gone blind. Khadija said to him, 'Cousin! Listen to your nephew.' Waraqa said to him, 'Nephew, what have you seen?' The Messenger of Allah, may Allah bless him and grant him peace, told him what he had seen. Waraqa said to him, 'This is the Namus [Jibril] who was sent to Musa. I wish that I were still young,' and he mentioned some more. The Messenger of Allah, may Allah bless him and grant him peace, asked, 'Will they drive me out?' He answered, 'Yes, no man has brought anything similar to what you have brought without being treated with hostility. If I am still alive on that day, I will give you my strong support.' Shortly after that, Waraqa died and there was a pause in the revelation so that the Messenger of Allah, may Allah bless him and grant him peace, was grieved."