
– Shaikh Ahmad Sirhindi, Letter to Murtaza Khan, On the execution of Guru Arjan. Sirhindi, Maktubat-i Imam-i Rabbani, I-iii, letter No. 193, pp. 95-6. Friedman Yohanan (1966), Shaikh Ahmad Sirhandi: An Outline of His Image in the Eyes of Posterity, Ph.D. Thesis, McGill University, pp. 110-112 (This is from records of Shaikh Ahmad Sirhindi, composed after the punishment and execution of Guru Arjun)