《太平广记·卷四·神仙四》
徐福给了他一袋黄色的药，并说： 这药能治任何疾病，再遇见有病的人，可以用羹匙量着喝一点就能治好病。 
复与黄药一袋，云： 此药善治一切病，还遇疾者，可以刀圭饮之。 
Xu Fu gave him a bag of yellow medicine and said: "This medicine can cure any disease, If you meet someone who is sick, you can use a spoon to measure out a little bit and give it to them to drink and it could cure the disease."