《资治通鉴·晋纪·晋纪三十三》
刘牢之征讨孙恩，把刘裕征召来任参军事，派他带几十个人去探听变民军队的动静。
刘牢之击孙恩，引裕参军事，使将数十人觇贼。
Liu Laozhi conscripted Sun En and appointed Liu Yu as an adjutant, sending him with dozens of men to reconnoiter the movements of the rebel army.