When is it permissible for the one in i'tikaf to leave the mosque?
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The questioner : Noble Shaykh, when is it permissible for those in i'tikaf to leave the mosque?
The Shaykh : It is permissible for the one in i'tikaf to leave the mosque for things that are necessary, such as if he is required to perform the full ritual bath for major ritual impurity; in that case, he goes out. He does not do so to be lax. Likewise, if he goes out to perform the full ritual bath for Jumu'ah, it is permissible, because the full ritual bath for Jumu'ah is obligatory according to the stronger position. As for a thing that he does not need, he does not go out for it. Yes.
The Shaykh : It is permissible for the one in i'tikaf to leave the mosque for things that are necessary, such as if he is required to perform the full ritual bath for major ritual impurity; in that case, he goes out. He does not do so to be lax. Likewise, if he goes out to perform the full ritual bath for Jumu'ah, it is permissible, because the full ritual bath for Jumu'ah is obligatory according to the stronger position. As for a thing that he does not need, he does not go out for it. Yes.