Seyed Mohammad Shirazi (12 May 1894 – 11 October 1971), commonly known as Sultan al-Wa'izin Shirazi ("Prince of Preachers from Shiraz"), was a prominent Shi'a scholar. He authored Peshawar Nights, an account of a public debate between Shi'a and Sunni Muslims which took place in Peshawar over 10 nights beginning on 27 January 1927 Sultanu l-Wa'izin Shirazi was born in Tehran on 12 May 1894. After his primary school in Tehran, he moved with his father to Karbala and studied in some Hawzas. Source: Wikipedia (en)