Mas'à «d b. ÿAbd Allah al-Bayá¸Âawi (Persian: àóùÃÂï è. ùèïçÃÂÃÂàèÃÂöçÃÂÃÂ) more commonly known as Baba Rukn al-Din Shirazi or Baba Rokneddin Shirazi (died 1367 or 1368) was a 14th-century Sufi mystic and follower of Ibn Arabi. His name means Father Rukn al-Din, the latter which transliterates as "Pillar of the Faith."
From childhood, Masud ibn Abdullah had an interest in Sufism. He eventually studied and learned spirituality and started his mystical journey at a young age. He studied the basics of Sufism under Abdul Razzaq al-Kashani. He then studied the Fusus al-Hikam of Ibn Arabi under Dawud al-Qaysari, with help from Nu'man al-Khwarizmi. In adulthood, he wrote many works on Sufism and scholarly knowledge, such as a commentary and exegesis of the Fusus al-Hikam.
Some of his most famous works: