《资治通鉴·晋纪·晋纪四十》
王康请求回洛阳探望老母，正巧长安失守，王康纠集关中流亡的逃民，共百多人，又裹胁客居洛阳的外郡人七百多户，共同保卫金墉城。
康求还洛阳视母；会长安不守，康纠合关中徙民，得百许人，驱帅侨户七百馀家，共保金墉城。
Wang Kang requested to go back to Luoyang and visit his old mother. It coincidentally happened that Chang’an had fallen. Wang Kang rallied the refugees in Guanzhong and recruited more than one hundred people. He also forced the seven hundred households that were from other counties to stay in Luoyang and work together to defend Jinyong. 