Sometimes Allâh's Messenger (ﷺ) would not observe Șaum (fast) (for so many days) that we thought that he would not observe Saum (fast) that month and he sometimes used to observe Saum (fast) (for so many days) that we thought he would not leave observing Ṣaum (fasting) throughout that month and [as regards his (prayer) and sleep at night], if you wanted to see him offering (prayer) at night, you could see him offering Salât (prayer) and if you wanted to see him sleeping you could see him sleeping. [2:242-O.B.]