What is the ruling on leaving the Witr prayer?

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Leaving the Witr prayer, despite it not being strictly obligatory, incurs a severe warning indicating its high status, which is interpreted as emphasizing its status as a highly confirmed Sunnah rather than establishing strict obligation. The Prophet's statement, "Witr is a right, whoever does not perform Witr is not one of us," is understood as a severe admonition meant to emphasize its importance.