Are seashells or marine conches considered bones with which it is impermissible to perform istijmar?
It is permissible to use seashells and marine conches for istijmar (cleaning oneself after relieving oneself) because they are not slaughtered in the name of Allah and are not food for the Muslim Jinn.
Summarized from the full answer at Ftawy · reviewed Sep 2, 2026
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