《资治通鉴·晋纪·晋纪三十九》
北燕尚书令孙护的弟弟孙伯仁为昌黎尹，与他的另一个弟弟孙叱支乙跋都有才略勇武，他们跟随燕王冯跋起兵，立过汗马功劳，但是，他们请求开府的待遇，却没有得到朝廷的同意，因此口出怨言，表示不满，冯跋把他们全部杀掉。
燕尚书令孙护之弟伯仁为昌黎尹，与其弟叱支拔皆有才勇，从燕王跋起兵有功，求开府不得，有怨言，跋皆杀之。
Sun Boren, the younger brother of Sun Hu, the Minister of the Northern Yan Dynasty, and Changli Yin, was as talented and brave as his other younger brother, Sun Chizhiyebat. They followed King冯跋 of Yan to raise troops and made great contributions. However, they were not approved by the court when they requested to open the mansion, which made them resentful and dissatisfied. Fengba killed them all.