It is narrated from Hazrat Aisha (may Allah be pleased with her) that we had a mat which we used to spread out during the day and at night we would cover ourselves with it. Once, at night, the Prophet (peace and blessings be upon him) was praying; the people of the mosque found out and mentioned it to others the next day. Consequently, many people gathered the following night. Seeing this, the Prophet (peace and blessings be upon him) said: "Take upon yourselves only as many deeds as you are able to bear, for Allah will not tire, but you surely will. And it was the practice of the Prophet (peace and blessings be upon him) that when he started a prayer, he would remain steadfast in it, and to the Prophet (peace and blessings be upon him), the most beloved deed was that which was done consistently."