Which of the following is known for his piety and memorized the Qur'an by the age of 7: Ahmad Nahavandi or Shah Waliullah Dehlawi?
Ahmad Nahavandi Ahmad ibn Muhammad al-Nahawandi was a Persian astronomer of the 8th and 9th centuries. His name indicates that he was from Nahavand, a city in Iran.
Muhammad Jaunpuri Syed Muhammad Jaunpuri (Urdu: سید محمد جونپورى‎ ) (September 9, 1443 – April 23, 1505 AD), claimed to be Imam Mahdi at Mecca in the Hijri year 901, and is revered as such by Mahdavia. He was born in Jaunpur, traveled throughout India, Arabia and Khorasan, where he died at the town of Farah, Afghanistan at the age of 63.