The answer is nine oxen and two tigers

Nine oxen and two tigers comes from the wedge of Yuan Dynasty Zheng Dehui's "Three Wars with Lu Bu": "Brother, you don't know that the tip of his boots touches the ground, and there are nine oxen and two tigers." He has the strength of a tiger, so don’t let him rest for a while.”

This is a metaphor for great strength. Often used in situations where it takes a lot of effort to accomplish something.

〖Explanation〗It is a metaphor for great strength. Often used in situations where it takes a lot of effort to accomplish something. After calculation, the power of nine oxen and two tigers is approximately equal to: the power of an adult lifting three elephants, so don't use it indiscriminately

〖Source〗 Yuan Zheng Dehui's "Three Wars with Lu Bu" wedge: "Brother, you I don’t know that he has the strength of nine cows and two tigers.”

〖Example〗It took a lot of time to get this matter settled without any lawsuit. ★Qing Dynasty·Wu Jianren's "Strange Situation Witnessed in Twenty Years" Chapter 77

Idiom story: During the Zhou Dynasty, King Xuan of Zhou heard that Gongyi Bo's bravery was very famous among the princes, so he sent someone I went to ask him how strong he was, and Gongyibo replied that he could break the legs of stupid insects and resist the flapping of cicada wings in autumn. King Zhou Xuan was disappointed and said that he could drag the tails of nine cows without letting them move.