The carpet and the mattress that become najis by the elements that do not have a mass (i.e., do not leave any marks or stains on the carpet or the mattress), it can be purified by sprinkling water over it from a kettle or a jug once until the pure water covers the impure area, and then wipe the water away by using a piece of cloth or a vacuum cleaner, etc. The carpet or the mattress will now be considered pure; and the water removed from it will be considered, on the basis of obligatory precaution, as najis.The same rule will apply in purifying the cloth if it becomes najis by impure sources other than urine. Things becoming najis by urine will be discussed later on. If one wants to purify the carpet or the mattress by using pure water connected to the kurr source [e.g., by using a hose pipe instead of pouring water from a jug], there is no need to wipe the water off using a piece of cloth or a vacuum cleaner, etc. As soon as the kurr water covers the najis area, it will become pure [and the water will also be considered as pure]. It is possible to purify the carpet or the mattress which has become najis by the elements that do have a mass (i.e., do leave marks or stains like blood or semen) by the same method as mentioned in No. 39 provided that the impure element is removed while washing or prior to washing. The only difference is that if it is purified by the qalil water [e.g., from a jug or a glass], then the water removed from the carpet will be considered najis as a confirmed opinion and not as an obligatory precaution. If a carpet or a mattress becomes najis by urine of an infant child that mostly gets nutrition by breast-feeding, then it can be purified by sprinkling water – even if it is little – on it until it covers the najis area. In this case, there is no need to remove the water by using a piece of cloth or vacuum cleaner, etc.