《资治通鉴·晋纪·晋纪三十三》
后燕北地王慕容钟向青州的各郡传布檄文，向他们申明祸福、利害关系。辟闾浑把八千多户居民迁徒到广固去据守，又派司马崔诞去戍守薄荀固，派平原太守张豁戍守柳泉。崔诞、张豁接到慕容钟的檄文后，都向慕容德投降。
北地王钟传檄青州诸郡，谕以祸福，辟闾浑徙八千馀家入守广固，遣司马崔诞戊薄荀固，平原太守张豁戌柳泉；诞、豁承檄皆降于德。
Later Yan's Beidi king Murong Zhong disseminated edicts to various prefectures in Qingzhou, declaring to them the misfortunes and benefits, advantages and disadvantages. Biluhun transferred more than eight thousand households to Guanggu for defense, and also dispatched Assistant Minister Cui Dan to defend Bo Xungu, and dispatched Pingyuan prefect Zhang Huo to defend Liuquan. After Cui Dan, Zhang Huo received Murong Zhong's edicts, they both surrendered to Murong De.