《黄帝内经·素问·诊要经终论》
在用针刺治病的时候，必须注意安静严肃，以候其气；如刺脓肿的病，可以用摇针手法以出脓血；如刺经脉的病，就不要摇针。这是刺法的一般规矩。
刺针必肃，刺肿摇针，经刺勿摇，此刺之道也。
When a needle is used to treat disease, it is important to observe tranquility and seriousness, in order to await the qi; if the disease is a pustule, then the needle should be shaken to draw out the pus; if the disease is to the meridians, then the needle should not be shaken. This is the general rule of acupuncture.