Some juristic discussion allows occasional congregational witr outside Ramadan, while not recommending a fixed nightly congregational habit.
Whether a rare congregational instance is valid and whether it is a prescribed recurring communal sunnah are two distinct questions. The adopted regular practice of congregational witr is associated with Ramadan.
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Qiyam Ramadan: Tarawih, Qur’an Recitation, and Witr Congregation
Some juristic discussion allows occasional congregational witr outside Ramadan, while not recommending a fixed nightly congregational habit.
Whether a rare congregational instance is valid and whether it is a prescribed recurring communal sunnah are two distinct questions. The adopted regular practice of congregational witr is associated with Ramadan.