Positive commandment · Mitzvat Aseh #155 of 613
To sanctify the Shabbat
לקדש שבת
The verse · Shemot 20:8
זָכוֹר אֶת־יוֹם הַשַּׁבָּת לְקַדְּשׁוֹ
“Remember the sabbath day, to keep it holy.”
The Rambam’s words
To sanctify the Shabbat, as [Exodus 20:8] states: "Remember the Shabbat day to keep it holy."
לקדש שבת, שנאמר: "זכור את יום השבת, לקדשו" (שמות כ,ז).
Why · Sefer HaChinuch #31
Sanctification of Shabbat with words
“It is from the roots of this commandment [that it is] in order that we be aroused through this act to remember the greatness of the day and that we fix upon our hearts faith in the creation of the world, “that in six days the Lord made, etc.” (Exodus 20:11).”
Who & when
“And [it] is practiced in every place and at all times by males and females — even though it is from the commandments that is caused by time (from which women are generally exempt).”
Where in the Mishneh Torah
Hilchot Sabbath הלכות שבת