Who said "Tell the king one man here knew how to keep quiet."?

Zeno of Citium (c. 334–262 BC). Source: Diogenes Laertius 7.24.

What is the original Greek?

ἀπαγγεῖλαι πρὸς τὸν βασιλέα ὅτι παρῆν τις σιωπᾶν ἐπιστάμενος. Translated from the original Greek by Spartan Surfers.

Tell the king one man here knew how to keep quiet.

Zeno of Citium, Diogenes Laertius 7.24

The source

"Tell the king one man here knew how to keep quiet." Zeno of Citium said it in Diogenes Laertius 7.24. Translated from the original Greek by Spartan Surfers.

"ἀπαγγεῖλαι πρὸς τὸν βασιλέα ὅτι παρῆν τις σιωπᾶν ἐπιστάμενος"

Original Greek, Diogenes Laertius 7.24. Greek: Hicks 1925 Loeb text via Perseus.

Who said it

Zeno of Citium (c. 334–262 BC). A shipwrecked merchant who founded Stoicism on a painted porch in Athens.

Questions

Who said "Tell the king one man here knew how to keep quiet."?: Zeno of Citium (c. 334–262 BC). Source: Diogenes Laertius 7.24.
What is the original Greek?: ἀπαγγεῖλαι πρὸς τὸν βασιλέα ὅτι παρῆν τις σιωπᾶν ἐπιστάμενος. Translated from the original Greek by Spartan Surfers.