Abu Ayyub al-Ansari
His given name was Khalil Ahmad, while Abu Ibrahim was his kunya. He was Ayyubi and Ansari, as his family claimed descent from Abu Ayyub al-Ansari, a companion of the Islamic prophet Muhammad. He was Anbahtawi (of Ambehta, referring to his family home), then Saharanpuri (of Saharanpur), then Madani (of Medina). The nisbat Muhajir Madani indicates his permanent migration ("hijrah") to the holy city. He followed the Hanafi school of "fiqh" (Islamic jurisprudence), and in "tasawwuf" (Sufism) he was a disciple of Rashid Ahmad Gangohi in the Sabiri-Imdadi chain of the Chishti order, which incorporates the Chishtia, Qadiri, Naqshbandi, and Suhrawardi orders.