What did Wu Zetian say when Di Renjie died? Why do historians dare not record it?

When the emperor died, Wu Zetian said, "The imperial court is empty" and cried. Historians saw that Wu Zetian, who had always been strong, said such a thing in the prosperous times, and dared not record it.

De Renjie was a famous prime minister in ancient China. He is also a resourceful detective. He has vindicated many people all his life and is a rare saint in the Millennium. Most importantly, even if Wu Zetian once doubted him, he has always been loyal and never had the opposite sex. Therefore, Wu Zetian likes calling himself emperor very much, and also calls him "the old country". At the same time, Wu Zetian also respected Di Renjie. When Di Renjie went to see Wu Zetian, according to the rules, he should pay homage.

But Wu Zetian didn't want Di Renjie to kneel down to herself, because she respected Di Renjie. However, Wu Zetian can't explicitly say that she doesn't want Di Renjie to kneel down, because Wu Zetian knows Di Renjie and Di Renjie won't do anything that doesn't agree with the ceremony. At the same time, in order to block the leisurely crowd, she needs a reasonable statement.

Then, Wu Zetian told the emperor that when he bowed down to himself, his knee ached faintly. For the comfort of his knee, the emperor was allowed to give in and didn't have to bow down. Wu Zetian wasted some thoughts in order not to let Di bow to her knees, which shows that Wu Zetian attached great importance to Di.

Before she died, Di Renjie told Wu Zetian that she would be transferred to Li Tang, but Wu Zetian disagreed and ordered Di Renjie not to talk about it with her. Later, the emperor knew that his time was coming, and he protested strongly before he died, but it was still not adopted by Wu Zetian. When Di Renjie died, Wu Zetian cried in court and said, "The court is empty." Historians dare not record the words of Wu Zetian.