Sayyiduna Anas (may Allah be pleased with him) narrates that one night the Messenger of Allah (peace and blessings be upon him) felt some discomfort. When morning came, it was said to him, "O Messenger of Allah, indeed the effect of the discomfort is very apparent on you." So he (peace and blessings be upon him) said: "Be aware, indeed despite this discomfort, all praise is due to Allah, last night I recited seven long surahs."