Who said "Do the work, then step back. That's the way of heaven."?

Lao Tzu (6th century BC). Source: Tao Te Ching 9.

Do the work, then step back. That's the way of heaven.

Lao Tzu, Tao Te Ching 9

The source

"Do the work, then step back. That's the way of heaven." Lao Tzu said it in Tao Te Ching 9. Translated from the original Chinese by Spartan Surfers.

"功遂身退，天之道。"

Original Chinese, Tao Te Ching 9. Chinese: Wang Bi edition via zh.wikisource.

Who said it

Lao Tzu (6th century BC). Keeper of the archives at the Zhou court, by tradition the author of the Tao Te Ching: eighty-one short chapters on water, softness and knowing when to stop.

Questions

Who said "Do the work, then step back. That's the way of heaven."?: Lao Tzu (6th century BC). Source: Tao Te Ching 9.
What is the original Chinese?: 功遂身退，天之道。. Translated from the original Chinese by Spartan Surfers.