《史记·三十世家·田敬仲完世家》
魏文侯就派使臣报告周天子和各国诸侯，请求立齐相田和为诸侯，周天子准许这一请求。
魏文侯乃使使言周天子及诸侯，请立齐相田和为诸侯。周天子许之。
Marquis Wen of Wei sent envoys to inform the Son of Heaven Zhou and the vassal states, requesting to establish Tian He, the prime minister of Qi, as a vassal state. The Son of Heaven Zhou approved this request.