If one leaves Muzdalifah on 10th Zil Hajj for Mina before the time of Fajr begins,
and returns before Fajr time commences, then the sin and penalty both fall away.
Womenfolk, the weak, the sick, children and the elderly are allowed to proceed to
Mina from Arafaat, without stopping in Muzdalifah if they fear the huge rush. This
does not result in a penalty, nor is it sinful.