So one who can make the halt from noon until sunset for the entire period...

So one who can make the halt from noon until sunset for the entire period, it is wajib upon him; although halt not far the entire period but halt for a part of it is rukn [that is without it the Hajj would not be valid], the rest being merely a wajib. This means that if someone omits the halt his Hajj is invalid far not performing a rukn of it. But if one makes a short halt, he has omitted only a wajib which is not rukn, and so his Hajj does not lose its validity [on this account].

Moreover, if someone cannot make the halt for the entire ikhtiyari period, due to some legitimate excuse, it is sufficient for him to make the halt for a part of the night of `Id. According to the Shafi'i, the Maliki, and the Hanbali schools,