Hatun and Abbas discuss how much Muhammad was influenced by Satan? The Hadith states we he was the victim of black magic. They also discuss the satanic verses.
Narrated Aisha: Once the Prophet was bewitched so that he began to imagine that he had done a thing which in fact he had not done. (Bukhari 3175)
Narrated Aisha: Magic was worked on Allah’s Messenger so that he used to think that he had sexual relations with his wives while he actually had not (Sufyan said: That is the hardest kind of magic as it has such an effect). Bukhari 5675
Hatun and Godwin discuss Sura 16:98-9 “So when you recite the Qur’an, [first] seek refuge in Allah from Satan, the expelled [from His mercy]. Indeed, there is for him no authority over those who have believed and rely upon their Lord.”
Islamic sources give the following criteria for demonic possession:
1. Choking, gasping, spasmodic movements, delirium, and whisperings. (Life of Muhammad, Guillaume p121)
2. Spitting and blowing (knots). (Bukhari 4:54:491; 2:21:243)