the implication of his saying, “You are to me like my mother’s back,” is that she becomes forbidden to him and unlawful for him. Thus, if he retains her for a period in which he could divorce her but does not do so, it is known that he has accepted this wife and has returned.
This too is incorrect, because not divorcing her in this situation does not indicate a return. Moreover, it entails that the wording of ẓihār constitutes a divorce, since this brief interval—this short period of time—would mean that it is exactly like a divorce.
The fourth opinion is that the return is the resolve to have intercourse; that is, he resolves to have intercourse with his wife. Thus, Allah’s saying, “then they go back on what they have said,” means that they resolve to regard the woman as lawful, on condition that he has intercourse with her. But if he resolves to regard her as lawful, yet does not have intercourse with her and then, for example, divorces her, no expiation is due from him, because it becomes obligatory only through intercourse.
This view is correct. Accordingly, if a man says to his wife, “You are to me like my mother’s back,” and then resolves to regard her as lawful, we say: this is a return to permissibility after prohibition. Yet the expiation does not become obligatory except through intercourse. The school of jurisprudence, however, holds—as the author stated—that the return is intercourse itself. But the apparent meaning of the noble verse is contrary to this, for Allah, Most High, says, “before they touch one another.” How, then, can we interpret the return as sexual contact? If we say that the return is intercourse, the meaning of the verse would become: then they have intercourse with them, so the freeing of a slave is required before they touch one another. This is incoherent. Rather, the return is the resolve to have intercourse and to regard her as lawful in a manner that would not apply to one’s mother. However, the expiation does not become binding as a liability except through intercourse.
His statement, “and it must be discharged,” means: the expiation must be discharged.
His statement, “before it,” means: before intercourse.