Abu Sa'id Abu'l-Khayr

Abū Saʿīd Abū'l-Khayr or Abusa'id Abolkhayr (Persian: ابوسعید ابوالخیر) (December 7, 967 - January 12, 1049), also known as Sheikh Abusaeid or Abu Sa'eed, was a famous Persian[1] Sufi and poet who contributed extensively to the evolution of Sufi tradition.

The majority of what is known from his life comes from the book Asrar al-Tawhid (اسرارالتوحید, or "The Mysteries of Unification") written by Mohammad Ibn Monavvar, one of his grandsons, 130 years after his death.

The book, which is an important early Sufi writing in Persian, presents a record of his life in the form of anecdotes from a variety of sources and contains a collection of his words.

Abū-Sa'īd's formal education included Islamic scholarship and Arabic literature that he continued until the age 23 when he left them for Sufism.

Moreover, in Asrar al-Tawhid, Tazkiratul Awliyā and Noorul Uloom it has been written that Abū-Sa'īd went for the visit of Shaikh Abul Hassan Kharaqani and got deeply influenced by his personality and state.

His system is based on a few themes that appear frequently in his words, generally in the form of simple emotional poems.

The main focus of his teachings is liberation from “I”, which he considered the one and only cause of separation from God and to which he attributed all personal and social misfortunes.

Despite their simplicity he believed that the full application of these teachings to one's life requires both divine grace and the guidance of an experienced Sufi, and is impossible through personal efforts alone.

The first meeting is described as three days of private conversation, at the end of which Abū-Sa'īd said to his followers that everything that he could see (i.e. in visions), Avicenna knew, and in turn Avicenna said that everything he knew Abū-Sa'īd could see, in realistic theory presents the superlative connection between Islamic Saints of God (أولياء, Awliya) revealing the reliability of such spiritual powers as believed to be placed on them by Allah ( الله, God).