Issue 866...
Issue 866: When (a man) knows that his wife is in the state of menstruation or afterbirth bleeding, then, he leaves or he travels or he desires to divorce her and it is not possible for him to become aware of her state, it is obligatory that he wait for a period of time wherein she usually becomes pure for menstruation or afterbirth bleeding, then, if he wants, he can divorce her.
Issue 867: When a man has intercourse with his wife, then, he desires to divorce her, it is obligatory that he wait until she menstruates, then, becomes pure. However, when she is pregnant, it is permissible that he divorce her after having intercourse with her without delay. Likewise, is the menopausal woman (Yaa’isah), meaning she who is more than fifty years old.
Issue 868: When a man has intercourse with his wife who was pure from menstruation and afterbirth bleeding, then, he travels and he does not possess the means to know her state, then, if he desires to divorce her, the obligatory precaution is that he awaits the minimum of one month, then, divorce her.
Issue 869: The woman who does not menstruate due to an illness or some other reason, when the man desires to divorce her, it is obligatory that he allow a period of three months to pass from (the time of) his intercourse with her avoiding intercourse with her in this period. Then, he can divorce her after that, if he wants.
Issue 870: There is no divorce for the temporary wife, rather, the temporary wife emerges from this marriage when the established period concludes or he grants her the remainder of the period (of the temporary marriage). Her purity from the month custom is not conditional and, likewise, there is no need to call upon witnesses.
The Seclusion (‘Iddah) of Divorce Issue 871: It is obligatory for the divorced woman to seclude herself (in 'Iddah) except when her husband had never had intercourse with her or he divorced her before she reached nine years of age or she was menopausal (meaning she is more than fifty years of age). In these three situations, it is permissible for her to marry another after her divorce directly.
Issue 872: The precaution in the period of seclusion ('Iddah) with relation to the woman who menstruates is that she wait for the amount of time in which she menstruates two times and becomes pure. Then, after she menstruates a third time, her seclusion concludes.