《资治通鉴·唐纪·唐纪六十一》
仇士良率领宦官到左金吾后院去察看甘露，韩约紧张得浑身流汗，脸色十分难看。
仇士良等至左仗视甘露，韩约变色流汗。
Chou Shiliang and the eunuchs went to the backyard of the Left Jinwu Guard to inspect the sweet dew. Han Yue was so nervous that he broke out in a sweat and his face was very ugly.