'Uthman bin Abu al-'As reported that he came to Allah's Messenger (ﷺ) and said: Allah's Messenger, the Satan intervenes between me and my prayer and my reciting of the Qur'an and he confounds me. Thereupon Allah's Messenger (ﷺ) said: That is (the doing of the Satan) who is known as Khinzab, and when you perceive its effect, seek refuge with Allah from it and spit three times to your left. I did that and Allah dispelled that from me.
'Uthman bin Abu al-'As reported that he came to Allah's Apostle (ﷺ) and he narrated like this. In the hadith transmitted on the authority of Salam bin Nuh there is no mention of three times.
‘Uthman b. Abul-'As said he told God’s messenger that the devil interfered with his prayer and his recitation of the Qur’an, causing confusion in his mind, and God’s messenger replied, “That is a devil called Khinzab; so when you feel his presence seek refuge from him in God and spit three times on your left side.” ‘Uthman did so and God caused him to depart from him. Muslim transmitted it.
Hafiz Zubair Ali Zai
Takhrij: [صحيح مسلم 5738]
Fiqh al-Hadith: ➊ The name of the devil who is set upon those performing prayer is Khanzab. In a fabricated (mawdu‘) narration from Ghunyat al-Talibin, the word “hadith” appears, which is a scribal error. ➋ One should act upon the methods for protection from satanic whisperings (waswasah) that are mentioned in authentic ahadith, so that Allah, by His grace and mercy, may safeguard one from these whisperings.
Source: Adwa al-Masabih fi Tahqiq Mishkat al-Masabih, Page: 77