The king must not have too many horses

"Moreover, he shall not multiply horses for himself, nor shall he cause the people to return to Egypt to multiply horses, since the LORD has said to you, 'You shall never again return that way.'

Hebrew

טז רַק, לֹא-יַרְבֶּה-לּוֹ סוּסִים, וְלֹא-יָשִׁיב אֶת-הָעָם מִצְרַיְמָה, לְמַעַן הַרְבּוֹת סוּס; וַיהוָה, אָמַר לָכֶם, לֹא תֹסִפוּן לָשׁוּב בַּדֶּרֶךְ הַזֶּה, עוֹד.

Greek

16 διότι οὐ πληθυνεῖ ἑαυτῷ ἵππον οὐδὲ μὴ ἀποστρέψῃ τὸν λαὸν εἰς Αἴγυπτον, ὅπως πληθύνῃ ἑαυτῷ ἵππον, ὁ δὲ κύριος εἶπεν Οὐ προσθήσετε ἀποστρέψαι τῇ ὁδῷ ταύτῃ ἔτι.

• Parashah: Shoftim
• Sefer HaChinuch: 499
• Mishneh Torah: Judges — Kings and Wars

• Deuteronomy 17:16

Enumeration and classification from BibleData. The Greek is the Septuagint reading of the same verse, carried by the source for comparison.