《资治通鉴·汉纪·汉纪三十八》
将领们不敢前往，便分出两千救兵交给范羌。范羌经由山北之路去接耿恭，途中曾遇到一丈多深的积雪。援军精疲力尽，仅能勉强到达。
诸将不敢前，乃分兵二千人与羌，从山北迎恭，遇大雪丈馀，军仅能至。
The generals did not dare to go, so they separated 2000 troops to be given to Fan Qiang. Fan Qiang took the route north of the mountain to meet Geng Gong, and encountered snow that was more than 3 meters deep along the way. The reinforcements were exhausted and could barely reach him.