The Ruling on praying on Land which is not Level
Question :
What is the ruling on praying on land which is not level, such as on hills and slopes, where it is difficult for the worshipper to stand straight and to bow and prostrate?
Answer:
It is not permissible to perform prayer in a place which is not level, since it is not possible to achieve calmness and humility, which is the essence of the prayer.
However, if the congregational mosque becomes crowded and the people form rows outside it, and there are depressions and raised areas on the ground which they cannot flatten, then it is permissible to pray therein by virtue of necessity.
Source:
Ibn Jibreen
Fatawa Islamiyah, Vol. 2 Page 222
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