من لا يحضره الفقيه, volume 3, page 514

Hadith.4802 - Ibn Abi Umayr and Al-Bazanti both narrated from Jamil, from Zurara, from Abu Ja'far Imam Muhammad ibn Ali Al-Baqir (as) who said: "There are two matters, whichever occurs first will determine the separation of a suspiciously divorced woman who is uncertain about her menstruation. If three full white months pass without any blood, she is separated by that. However, if three menstrual cycles occur, even if there are not three full months between them, she is separated by the menstruation."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.4803 - Abu al-Sabbah al-Kinani asked Abu Abdullah (as) about a woman who menstruates once every three years-how should she observe her waiting period? Imam (as) said: "She should consider the usual menstruation cycles she used to have when her menstruation was regular and observe a waiting period of three menstrual cycles. Then, if she wishes, she may marry."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.4804 - Muhammad ibn Muslim asked Imam (as) about the waiting period of a mustahadah (a woman experiencing continuous bleeding). Imam (as) said: "She should wait for the duration of her usual menstrual cycles, adding a day or subtracting a day. If she does not menstruate, then she should look at the menstrual cycles of some of the women like her and observe her waiting period according to their cycles."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.

Hadith.4805 - It is narrated: "When a woman reaches the age of fifty, she no longer sees menstrual blood, except if she is a woman from the tribe of Quraysh."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.