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" Have I heard right that you fast everyday and stand in prayer all night?’ Abdullah replied, ‘Yes, O Messenger of God.’ The Prophet said, ‘Do not do that. Fast, as well as eat and drink. Stand in prayer, as well as sleep. For your body has a right upon you, your eyes have a right upon you, your wife has a right upon you, and your guest has a right upon you.’ (Bukhari, Muslim.) "
― Khurram Murad , In The Early Hours: Reflections On Spiritual and Self Development