《魏书·列传·卷七十四》
有一只小鸟，白色羽毛，乌黑的眼睛，形如麻雀大小，栖息在王崇房上，早晚不飞走，与他为伴。母亲丧期刚满，又遭父丧，哀伤悲痛过于礼仪规定。
有一小鸟，素质墨眸，形大如雀，栖于崇庐，朝夕不去，母丧始阕，复丁父忧，哀毁过礼。
There was a small bird with white feathers and black eyes, as small as a sparrow, which lived on Wang Chong's roof and did not fly away morning or evening, keeping him company. When his mother's mourning period just ended, he suffered the loss of his father, grieving even more painfully than the ritual required.