Our companions have said that sex is considered as the disappearance of the head of a healthy penis, and this is agreed upon. If it is made to disappear completely, all the rulings for it are applicable, although it is agreed that this is not conditional upon the disappearance of the entire penis. If part of the head of the penis disappears, none of the rulings are applicable; this is agreed upon except for one perverse point of view which some of our companions have put forth – that all of the rulings are applicable – but this point of view is mistaken, repudiated, and abandoned. And if the penis is severed, and less than the equivalent of a head remains of it, none of the rulings are applicable as a result. If the remaining portion is equivalent to a head, the applicability of the rulings is deemed from its complete disappearance. And if there is more than what is equivalent to a head, there are two well-known points of view, the more correct of them being that the rulings are applicable due to the presence of what is equivalent to a head on it, and the second that none of the rulings are applicable except upon disappearance of the entire remaining portion. But Allah knows better.