Are the remembrances after prayer (Tasbih, Tahmid, and Takbir) to be recited if there is a legitimate excuse preventing one from performing the prayer, or is the ruling on this like that of a sick person for whom the reward of what he used to do in good health is written?

A menstruating woman or a woman in postpartum bleeding is not obligated to perform the post-prayer remembrances (dhikr), as there is no evidence for this. Rather, she omits them because she is not performing the prayer. As for whether she is rewarded for the acts of worship she missed during her days of purity due to menstruation, there is a difference of opinion. Some scholars believe she is rewarded, by analogy with the sick and the traveler, while others believe she is not rewarded, considering that she is not qualified to pray during menstruation, or because the deficiency in religion necessitates no reward. However, she is rewarded for refraining from worship in compliance with Islamic law.