Your Lord knows that you meditate during two-thirds of the night, or half of it, or one-third of it, and so do some of those who believed with you. GOD has designed the night and the day, and He knows that you cannot always do this. He has pardoned you. Instead, you shall read what you can of the Quran. He knows that some of you may be ill, others may be traveling in pursuit of GOD's provisions, and others may be striving in the cause of GOD. You shall read what you can of it, and observe the contact prayers (Salat), give the obligatory charity (Zakat), and lend GOD a loan of righteousness. Whatever good you send ahead on behalf of your souls, you will find it at GOD far better and generously rewarded. And implore GOD for forgiveness. GOD is Forgiver, Most Merciful.