《资治通鉴·汉纪·汉纪十》
当初，主父偃在齐、燕、赵各地活动，都没有受到人家的厚待，儒生们联合起来排斥他，不能相容；家中贫穷，借贷无门，主父偃就西入关中，到皇宫的门阙下上书，早晨把奏书呈上，晚上就被召入宫中拜见武帝。
始，偃游齐、燕、赵，皆莫能厚遇，诸生相与排摈不容；家贫，假贷无所得，乃西入关上书阙下，朝奏，暮召入。
Earlier, Zhu Fuyuan was active in Qi, Yan, and Zhao, but was not treated well by the people. The Confucianists worked together to exclude him and treat him with great hostility. His family was poor and he was heavily in debt. Zhu Fuyuan went west and entered the Guanzhong region. He went to the gate of the imperial palace and handed in his official letter. In the morning, he submitted his memorial, and in the evening, he was summoned to the palace for an audience with Emperor Wu.