(62) And We charge no soul except [with that within] its capacity, and with Us is a record which speaks with truth; and they will not be wronged.
(61) There is not upon the blind [any] constraint nor upon the lame constraint nor upon the ill constraint nor upon yourselves when you eat from your [own] houses or the houses of your fathers or the houses of your mothers or the houses of your brothers or the houses of your sisters or the houses of your father'sbrothers or the houses of your father'ssisters or the houses of your mother'sbrothers or the houses of your mother'ssisters or [from houses] whose keys you possess or [from the house] of your friend. There is no blame upon you whether you eat together or separately. But when you enter houses, give greetings of peace upon each other - a greeting from Allah, blessed and good. Thus does Allah make clear to you the verses [of ordinance] that you may understand.
(17) There is not upon the blind any guilt or upon the lame any guilt or upon the ill any guilt [for remaining behind]. And whoever obeys Allah and His Messenger - He will admit him to gardens beneath which rivers flow; but whoever turns away - He will punish him with a painful punishment.
The Messenger of Allah (PBUH) was asked which deeds are most pleasing to Allah. He said: The one that is maintained the most, even if it is little. He said: Commit yourselves to as much ritual work as you can afford.
Refrain from connected -uninterrupted- fasting, refrain from connected fasting. People said: You connect fasting, O Messenger of Allah. He said: I am not in this matter like you. I spend the night and my Lord feeds and provide drink for me, so commit yourselves to as much -ritual- work as you can afford.
The Messenger of Allah (PBUH) was praying at night in his room, and the wall of the room was low, so people saw him, and some of them got up and followed his prayer. The next morning they spead the news. On the second night, the Prophet (PBUH) got up and prayed, and people followd his prayer. They did that for two or three nights until after that, the Messenger of Allah (PBUH) stayed and did not get up. In the morning, he talked to people about it and said: Lest night prayer would be prescribed for you.