Pir Sultan Abdal (born Haydar) is an important religious figure in Alevism and considered legendary among his followers. Although it is not mentioned in historical texts, it is believed that he was of Turkmen origin from village of Banaz in present-day Sivas Province in Turkey. His life is reconstructed from folkloric sources, especially religious poems which are believed to have been composed by himself and transmitted by ashiks.
- O'Connell, John M. (2013). "Pir Sultan Abdal". In Fleet, Kate; Krämer, Gudrun; Matringe, Denis; Nawas, John; Rowson, Everett (eds.). Encyclopaedia of Islam, THREE. Brill Online. ISSN 1873-9830.