This was the period when Sayyidina Rasulullah Sallallahu 'Alayhi Wasallam had become weak and he recited lengthy portions of the Qur-aan, as has been mentioned previously. He performed the major part of the nafl salaah whilst sitting for this reason. The ajr (thawaab- reward) for sitting and performing salaah is half that of performing salaah in a standing posture. Sayyidina Rasulullah Sallallahu 'Alayhi Wasallam is exempted from this rule. For Sayyidina Rasulullah Sallallahu 'Alayhi Wasallam to sit and perform salaah, is the same in reward as that of standing and performing salaah as mentioned above. A narration has been mentioned in the Abu Daawud and other kitaabs that Sayyidina Rasulullah Sallallahu 'Alayhi Wasallam has said: "I am not like you in this manner. I receive the same amount of ajr (thawaab-reward) when sitting and performing salaah".