The History of Shēr Shāh (Tārīkh-i Shērshāhī) 3.12.3

3.12.3

When Sher Khan heard that the Emperor Humayun intended himself marching towards Bihar, he sent magnificent presents to Hindu Beg, governor of Jaunpur, and gained his goodwill. At the same time Sher Khan wrote thus: "From what I promised I have not departed. I have not invaded the Emperor's country. Kindly write to the Emperor; and assuring him of my loyalty, dissuade him from marching in this direction; for I am his servant and well-wisher." When Hindu beheld Sher Khan's presents, he approved of them, and was well pleased, and he said to the vakil, "So long as I live, let your mind be easy. No one shall injure you." And in the presence of Sher Khan's vakil, Hindu Beg wrote a letter to the Emperor Humayun, saying: "Sher Khan is a loyal servant of Your Majesty, and strikes coin and reads the khutba in your name, and has not transgressed the boundaries of Your Majesty's territory, or done anything since your departure which could be any cause of annoyance to you." The Emperor, on receipt of Hindu Beg's letter, deferred his journey that year. Sher Khan, meanwhile, detached Jalal Khan, Khawas Khan senior, and other chiefs, to conquer Bengal and the city of Gaur. On their entering Bengal, Sultan Mahmud, unable to oppose them, retired to the fort of Gaur. The Afghans, having made themselves masters of the surrounding country, invested and besieged that fortress, before which daily skirmishes took place.