《旧五代史·后唐·末帝纪下》
第二天，想把石敬瑭调到郓州，房詗等人坚持说不可以，司天监赵延义也说天上的星辰失去法度，尤其需要安静，这件事于是稍微缓慢了一些。
翼日，欲移石敬瑭于郓州，房暠等坚言不可，司天监赵延乂亦言星辰失度，尤宜安静，由是稍缓其事。
The next day, he wanted to transfer Shi Jingtang to Yuezhou, but Fang Xi and others insisted that he could not do so. Zhao Yanyi, the director of the Bureau of Astronomy, also said that the stars in the sky have lost their order and that peace was needed above all else. This matter was thus put on hold for a while.