The 168th mitzvah is that we are commanded to dwell in a Sukkah for all seven days of the holiday [of Sukkos].
The source of this commandment is G‑d's statement (exalted be He),1 "For seven days you must dwell in Sukkos."
The details of this mitzvah are explained in the tractate devoted to this subject; i.e., tractate Sukkah.
Women are not obligated in this mitzvah.