Bandırmalızâde Seyyid Mustafa Hâşim Efendi, known as Hâşim Baba (d. 1197/1783), was born in 1718 in Üsküdar as the son of the Jelveti sheikh Yûsuf Nizâmeddin Efendi. Raised in Jelveti discipline, he later established contact with Bektashi circles and became the head of his father's lodge in İnâdiye. After his death his followers formed the Hâşimiyye branch of the Jelvetiyye in his name. His tomb lies in the cemetery of the Bandırmalızâde (Hâşimî) lodge at İnâdiye, Üsküdar, and was relocated to a new spot within the same property during a road adjustment.