Reference: https://twitter.com/bin_othaimen/status/792037837772296193
على العاقل أن يكثر من النوافل ما دام في حال الصحة لأن جميع النوافل التي يعملها في صحته إذا مرض وعجز عنها كتبت له كاملة.
— العلامة ابن عثيمين (@bin_othaimen) October 28, 2016
Shaykh Ibn ‘Uthaymeen said:
It is upon the intelligent one to exert himself in performing voluntary acts of worship – so long as he is in a state of [good] health.
That is because all the voluntary acts of worship he performs while in good health – will [still] be recorded as complete if he becomes ill and incapable of doing them.