I said to 'Aisha, "O Mother! Did Prophet Muhammad see his Lord?" Aisha said, "What you have said makes my hair stand on end ! Know that if somebody tells you one of the following three things, he is a liar: Whoever tells you that Muhammad saw his Lord, is a liar." Then Aisha recited the Verse: 'No vision can grasp Him, but His grasp is over all vision. He is the Most Courteous Well-Acquainted with all things.' (6.103) 'It is not fitting for a human being that Allah should speak to him except by inspiration or from behind a veil.' (42.51) 'Aisha further said, "And whoever tells you that the Prophet knows what is going to happen tomorrow, is a liar." She then recited: 'No soul can know what it will earn tomorrow.' (31.34) She added: "And whoever tell you that he concealed (some of Allah's orders), is a liar." Then she recited: 'O Apostle! Proclaim (the Message) which has been sent down to you from your Lord..' (5.67) 'Aisha added. "But the Prophet saw Gabriel in his true form twice."
Sahih al-Bukhari, Vol. 6, Book of Prophetic Commentary on the Qur'an, Hadith 378
Sahih al-Bukhari, Book of Prophetic Commentary on the Qur'an, Hadith 378