See Badalkhan, "Zikri Dilemmas" (2008), page 299, note 299: Cf. the manuscripts Sayl-iˇ iah¯ an¯ı and Angab¯ın 1725; UMRANI BALOCH 1986:103; HOSHANG 1991:26; DURRAZAI 2003:18; 2005:6. The author of Itti˙h¯ ad-i nawˇi aw¯ an¯ an-i Zikr¯ı II:4 quotes several sources, some of them poems composed by the companions of the Mahdi and some poems composed by thesecond generation of his followers. All give 977/1569 as the birth date of the Mahdi. Among them is a poem composed by a companion of the Mahdi, Mir Abdullah Jangi, which records his travels, and the manuscripts Durr-i wuˇ i¯ ud (completed in 1107/1696) by Shaikh Mohammad Durfishan, grandson of Mir Abdullah Jangi; also Durr-i ˙sadaf (completed in 1182/1769) by Qazi Brahem Kashani, and several others. I have consulted http://www.islamsa.org.za/calendar/converter.htm to convert Hijri dates to Gregorian.