Whether the Limbs Must Be Washed Without Interruption
Must the limbs be washed without interruption, so that one does not dry before the next is washed?
Washing the limbs without interruption is a sunnah, not an obligation: if a limb dries or the interval grows long, the ablution is valid, though disliked if there was no excuse.
Washing without interruption is an obligation in the ablution for one who remembers and is able; its measure is that the limb washed before does not dry in a moderate span. If the limbs dry through a long interval, the ablution must be repeated.
Washing without interruption is a sunnah in the ablution, not an obligation: the washing of the limbs may be spread out even if the earlier limb dries, and the ablution is valid without it.
Washing without interruption is one of the obligatory acts of the ablution and does not lapse through forgetfulness or ignorance; it means not delaying the washing of a limb until the one before it dries in a moderate span. Drying does no harm if it is due to being occupied with a sunnah or with dispelling misgivings.