Surely your Lord knows that you do stand (to recite the Qur´an, to make dhikr, to be qânitin, to perform the prayer of Tahajjud) nearly two-thirds of the night, and (sometimes) half of it, and (sometimes) a third of it, and (also) a party of those with you; and Allah measures (foreordains) the night and the day. He knows that you cannot count it (you cannot determine exactly the times of the night), so He has turned to you (in repentance), therefore read what is easy of the Qur´an. He knows that there must be among you sick, and others who travel in the land seeking of the Bounty of Allah, and others who fight in the Way of Allah, therefore read as much of it as is easy (to you), and keep up the prayer(s) and give the Zakât (poor-rate), and lend to Allah a goodly loan, and whatever of good you send on beforehand for yourselves, you will find it with Allah (in the Divine Presence) as a better and greater reward. And ask forgiveness of Allah; Surely Allah is Oft-Forgiving, Most Merciful.