Abu Abd Allah Muhammad ibn Abd Allah al-Hakim al-Nishapuri (Persian: أبو عبد الله محمد بن عبد الله الحاكم النيسابوري; 933 - 1014 CE), also known as Ibn al-Bayyiʿ,[4] was a Persian[5] Sunni scholar and the leading traditionist of his age, frequently referred to as the "Imam of the Muhaddithin" or the "Muhaddith of Khorasan.
[8] Amongst the leading and renowned hadith masters who Al-Hakim narrated from were his own teachers Ibn Hibban, Al-Khattabi, Al-Daraqutni and Al-Halimi.
[7][9][10][11] He had plenty of students who transmitted hadith from him and they include Al-Bayhaqi (foremost pupil), Abu Nu'aym al-Isfahani, Al-Qushayri, Muhammad bin Husayn al-Sulami and others.
[12] Al-Hakim is from the second generation of the Ash'ari school of theology, having taken his creed directly from the immediate students of Imam Al-Ash'ari, the most prominent one being Abu Salh Al-Suluki.
Al-Hakim studied under a number of Sufi masters that taught him the science of Tasawwuf with the most prominent one being Sheikh Abu Amr Bin Nuja.
After some time he had a group of followers named a title of praise, Badi al Zaman (Wonder of The Age), after which he became infatuated with himself, obsessed and proud.
Later, one of al-Hakim's students, Al-Hasan ibn Ash`ath al-Qurashî said: "I saw al-Hâkim in my dream riding a horse in a handsome appearance and saying: 'Salvation.'