Musannaf Ibn Abi Shaybah

Hazrat Awn bin Abdullah (may Allah have mercy on him) says that during the Battle of Qadisiyyah, people passed by a man whose stomach was split open and his intestines were protruding. He said to a man, "Put my intestines back inside so that I may advance a little further, the length of one or two spears, in the path of Allah." So he did so.