Narrated 'Aisha (the mother of the faithful believers): The commencement of the Divine Inspiration to Allah's Messenger (ﷺ) was in the form of good dreams which came true like bright daylight, and then the love of seclusion was bestowed upon him. He used to go in seclusion in the cave of Hira where he used to worship (Allah alone) continuously for many days before his desire to see his family. He used to take with him the journey food for the stay and then come back to (his wife) Khadija to take his food likewise again till suddenly the Truth descended upon him while he was in the cave of Hira. The angel came to him and asked him to read. The Prophet (ﷺ) replied, "I do not know how to read." The Prophet (ﷺ) added, "The angel caught me (forcefully) and pressed me so hard that I could not bear it any more. He then released me and again asked me to read and I replied, 'I do not know how to read.' Thereupon he caught me again and pressed me a second time till I could not bear it any more. He then released me and again asked me to read but again I replied, 'I do not know how to read (or what shall I read)?' Thereupon he caught me for the third time and pressed me, and then released me and said, 'Read in the name of your Lord, who has created (all that exists), created man from a clot. Read! And your Lord is the Most Generous." (96.1, 96.2, 96.3) Then Allah's Messenger (ﷺ) returned with the Inspiration and with his heart beating severely. Then he went to Khadija bint Khuwailid and said, "Cover me! Cover me!" They covered him till his fear was over and after that he told her everything that had happened and said, "I fear that something may happen to me." Khadija replied, "Never! By Allah, Allah will never disgrace you. You keep good relations with your kith and kin, help the poor and the destitute, serve your guests generously and assist the deserving calamity-afflicted ones." Khadija then accompanied him to her cousin Waraqa bin Naufal bin Asad bin 'Abdul 'Uzza, who, during the pre-Islamic Period became a Christian and used to write the writing with Hebrew letters. He would write from the Gospel in Hebrew as much as Allah wished him to write. He was an old man and had lost his eyesight. Khadija said to Waraqa, "Listen to the story of your nephew, O my cousin!" Waraqa asked, "O my nephew! What have you seen?" Allah's Messenger (ﷺ) described whatever he had seen. Waraqa said, "This is the same one who keeps the secrets (angel Gabriel) whom Allah had sent to Moses. I wish I were young and could live up to the time when your people would turn you out." Allah's Messenger (ﷺ) asked, "Will they drive me out?" Waraqa replied in the affirmative and said, "Anyone (man) who came with something similar to what you have brought was treated with hostility; and if I should remain alive till the day when you will be turned out then I would support you strongly." But after a few days Waraqa died and the Divine Inspiration was also paused for a while.

Narrated Yahya bin Abi Kathir:

I asked Aba Salama bin `Abdur-Rahman about the first Sura revealed of the Qur'an. He replied "O you, wrapped-up (i.e. Al Muddaththir)." I said, "They say it was, 'Read, in the Name of your Lord Who created,' (i.e. Surat Al-`Alaq (the Clot)." On that, Abu Salama said, "I asked Jabir bin `Abdullah about that, saying the same as you have said, whereupon he said, 'I will not tell you except what Allah's Messenger (ﷺ) had told us. Allah's Messenger (ﷺ) said, "I was in seclusion in the cave of Hiram', and after I completed the limited period of my seclusion. I came down (from the cave) and heard a voice calling me. I looked to my right, but saw nothing. Then I looked up and saw something. So I went to Khadija (the Prophet's wife) and told her to wrap me up and pour cold water on me. So they wrapped me up and poured cold water on me." Then, 'O you, (Muhammad) wrapped up! Arise and warn,' (Surat Al Muddaththir) was revealed." (74.1)

Narrated Yahya:

I asked Aba Salama, "Which Sura of the Qur'an was revealed first?" He replied, "O you, wrapped-up' (Al-Muddaththir)." I said, "I have been informed that it was, 'Read, in the Name of your Lord who created (i.e. Surat Al-Alaq)...similar to the narration related by `Ali bin Al-Mubarak, 444 above).

Narrated Aisha:

(the wife of the Prophet) The commencement (of the Divine Inspiration) to Allah's Messenger (ﷺ) was in the form of true dreams in his sleep, for he never had a dream but it turned out to be true and clear as the bright daylight. Then he began to like seclusions, so he used to go in seclusion in the cave of Hira where he used to worship Allah continuously for many nights before going back to his family to take the necessary provision (of food) for the stay. He come back to (his wife) Khadija again to take his provision (of food) likewise, till one day he received the Guidance while he was in the cave of Hira. An Angel came to him and asked him to read. Allah's Messenger (ﷺ) replied, "I do not know how to read." The Prophet (ﷺ) added, "Then the Angel held me (forcibly) and pressed me so hard that I felt distressed. Then he released me and again asked me to read, and I replied, 'I do not know how to read.' Thereupon he held me again and pressed me for the second time till I felt distressed. He then released me and asked me to read, but again I replied. 'I do not know how to read.' Thereupon he held me for the third time and pressed me till I got distressed, and then he released me and said, 'Read, in the Name of your Lord Who has created (all that exists), has created man out of a clot, Read! And your Lord is the Most Generous. Who has taught (the writing) by the pen, has taught man that which he knew not." (96.1-5). Then Allah's Messenger (ﷺ) returned with that experience; and the muscles between his neck and shoulders were trembling till he came upon Khadija (his wife) and said, "Cover me!" They covered him, and when the state of fear was over, he said to Khadija, "O Khadija! What is wrong with me? I was afraid that something bad might happen to me." Then he told her the story. Khadija said, "Nay! But receive the good tidings! By Allah, Allah will never disgrace you, for by Allah, you keep good relations with your Kith and kin, speak the truth, help the poor and the destitute, entertain your guests generously and assist those who are stricken with calamities." Khadija then took him to Waraqa bin Naufil, the son of Khadija's paternal uncle. Waraqa had been converted to Christianity in the Pre-lslamic Period and used to write Arabic and write of the Gospel in Arabic as much as Allah wished him to write. He was an old man and had lost his eyesight. Khadija said (to Waraqa), "O my cousin! Listen to what your nephew is going to say." Waraqa said, "O my nephew! What have you seen?" The Prophet (ﷺ) then described whatever he had seen. Waraqa said, "This is the same Angel (Gabriel) who was sent to Moses. I wish I were young." He added some other statement. Allah's Messenger (ﷺ) asked, "Will these people drive me out?" Waraqa said, "Yes, for nobody brought the like of what you have brought, but was treated with hostility. If I were to remain alive till your day (when you start preaching). then I would support you strongly." But a short while later Waraqa died and the Divine Inspiration was paused (stopped) for a while so that Allah's Messenger (ﷺ) was very much grieved.