《晋书·列传·第十四章》
祖父李敏，汉时任河内太守，辞官回家乡，辽东太守公孙度想逼他当官，他乘扁舟漂流大海，不知去向。
祖敏，汉河内太守，去官还乡里，辽东太守公孙度欲强用之，敏乘轻舟浮沧海，莫知所终。
His grandfather, Li Min, served as Governor of Henan during the Han Dynasty. He resigned from his position and returned to his hometown. Later, Gongsun Du, Governor of Liaodong, wanted to force him to take a position in his administration, but he sailed away in a small boat and disappeared without a trace.