In which ancient text does the word "Qing" appear and what does it mean?

Reference answer:

⑴ When spring comes and the scenery is bright, the waves are calm, and the sky above and below is bright and green.

Hare: unit of land area. Ten thousand hectares, extremely vast.

From Fan Zhongyan's "Yueyang Tower" in the Song Dynasty

⑵ After a while, I heard a touch of a ruler in the barrier, and everyone was silent, and no one dared to make a scene.

A moment: a short period of time. A little while, soon, a while.

From Lin Sihuan's "Vitriol" in the Qing Dynasty

I hope it will be helpful to you!