Firishta's History (Gulshan-i Ibrāhīmī) 57.2.7

57.2.7

and, on the next day, having marched out of Ahmudabad, he encamped near Assavul, in the neighbourhood of Surkech. The Guzerat army under Bahadur Shah reached that place about the same time, when the Moguls fired a few shots into Bahadur Shah's camp, one of which struck his tent. Vexed at this circumstance, he sent for Guzunfur Beg Koka, in order to execute him; but he was restrained by his assuring him that he had certain information of Askurry Mirza's intended retreat on that very night. It turned out as he said; for Askurry Mirza, calculating on securing Hoomayoon's treasure at Champanere, marched towards that fortress. Bahadur Shah pursued him during two or three days, but returned; while Tardy Beg, the governor of Champanere, on discovering Askurry Mirza's object, resolved to put him to death rather than suffer him to obtain the treasure. Askurry Mirza, finding his design frustrated, marched to Agra, raising troops on the road: meanwhile, Hoomayoon, anticipating his views, left Mando, and reached Agra before him. Askurry Mirza, on hearing that Hoomayoon had already arrived, perceived that his diabolical projects had all miscarried. Accordingly, he, together with Yadgar Nasir Mirza, and Kasim Sooltan, represented to Hoomayoon, that being unable to maintain Guzerat against Bahadur Shah, they had returned to join the King at Agra.