The ruling of the menstruating Woman sitting at the place of Sa'y
Question :
Is it permissible for the woman who is menstruating to sit at the place of Sa'y?
Answer:
Yes, it is permissible for the woman who is menstruating to sit at the place of Sa'y, because the place of Sa'y is not considered a part of the Sacred Mosque. For that reason, if the woman gets her menses after Tawaf and before Sa'y, she may perform Sa'y because the Sa'y is not the Tawaf, and purity is not a condition of it. Based on this, we say that if the menstruating woman sits at the place of Sa'y waiting for her family, there is no sin on her for that.
Source:
Ash-Shaykh Ibn 'Uthaimin
Fatawa Islamiyah, Vol. 4 Page 162