《战国策·楚四·楚考烈王无子》
李园就请求能当春申君的舍人，当上舍人不久，请假回家，又故意晚回来。
李园求事春申君为舍人。已而谒归，故失期。
Li Yuan asked to be a man close to Lord Chunshen. Not long after being appointed, he requested leave to return home, but he deliberately came back late.