Hazrat Qais narrates that Hazrat Abu Ubaid bin Mas’ud was with his companions in the battle of Mehran. After they had crossed, the bridge was cut off and they were martyred. Hazrat Qais says that in the battle of Mehran, some people, among whom was Hazrat Khalid bin ‘Arfatah, said to Hazrat Jarir,“O Jarir! We will never leave our place.”He said,“O Jarir! We should cross this river.”I said,“Do you want them to do to us what they did to Abu Ubaid? We are a people who do not know how to swim. We will not leave our area until Allah decides between us and them.”So the polytheists crossed it, and on that day Mehran was killed; at that time he was at a place called Nakhilah.