مناسك حج - مكارم شيرازى، ناصر - الصفحة ٢٢٦ - Umrah al -Mufradah
٦- Performing Say of Safa and Marwah is not permitted in the upper level, unless congestion of crowd is too much that performing Say in the lower level causes severe hardness.
٧- It is enough to go some of the ascent of Safa and Marwah and it is not ecessary to reach the bare part of the hill and but the feet on that part( covered ascent in Safa and Marwah is a part of the hill ).
٨- Sitting has no problem during performing obligatory Tawaf for removing tiredness but it is precaution not to lose the sequence and the distance becomes very long; but sitting during performing Say for removing tiredness or like that has no problem and it can be as much as it takes, if it is in Safa, in Marwah or between them.
٩- Performing Ramy al- Jamarat( hurling pebbles to the places of Jamarat in Mena )is permitted in the upper level, and those who cannot perform Ramy in the day can perform it the night before or after that.