《汉书·传·李广苏建传》
任立迪等见到李绪，没有机会私语，便目视李陆，多次抚摸佩刀上的环，摸捉李陵的脚，暗谕可以归莲。
立政等见陵，未得私语，即目视陵，而数数自循其刀环，握其足，阴谕之，言可还归汉也。
When Renlidi and others saw Li Xu, they had no opportunity to speak to him privately, so they looked at Kuiyu, stroking the ring on their swords several times to try and get Li Ling's attention and secretly hinting that he could return.