Allaah’s Messenger صلى الله عليه وسلم said:
“A traveller’s or sick person deeds are recorded in accordance with what he used to do when he was resident or in good health.”
This hadeeth should encourage us to increase in good deeds and do them regularly, because if one does become ill or reach old age it becomes difficult to do many acts of worship, ask those who have an illness or those who are old, but if you accustom yourself now, if something from illness befalls you or old age and you are unable to do those acts of worship which you used to do when in good health you’ll still be rewarded for those actions. How vast is Allaah’s mercy?!