The Office of the Supreme Leader

The criterion for tarakhkhuṣ limit

Q: The criterion of the tarakhkhuṣ limit is the visibility of the city’s walls and audibility of its adhān. Are both of them together necessary or one is sufficient?
A: It is based on caution to observe both the signs, though it is not remote that the inaudibility of the adhān is adequate for determining the tarakhkhuṣ limit.
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