《左传·文公·文公六年》
政令法规完成以后，交给太傅阳子和太师贾佗，使之在晋国推行，作为经常的法则。
既成，以授大傅阳子与大师贾佗，使行诸晋国，以为常法。
After the completion of the policies and regulations, they were handed over to Taifu Yang Zi and Taishi Jia Tu for implementation in the State of Jin as a permanent law.