Mishneh Torah — Positive Mitzvot מצוות עשה, Chapter 210
The full Hebrew text of Mishneh Torah, Positive Mitzvot, Chapter 210, with English translation by Maimonides (Rambam).
לכבד אב ואם, שנאמר "כַּבֵּד אֶת אָבִיךָ וְאֶת אִמֶּךָ" (שמות כ, יא); (דברים ה, טו).
To honor one's father and mother, as [Exodus 20:12] states: "Honor your father and mother."