رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 133
The Book of Miscellany
Numerous ways of doing Good
السابع عشر: عَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّه عَلَيْهِ وَسَلَّمَ : إِذَا مَرِضَ الْعَبْدُ أَوْ سَافَرَ كُتِبَ لَهُ مِثْلُ مَا كَانَ يَعْمَلُ مُقِيمًا صَحِيحًا ((رَوَاهُ الْبُخَارِيّ)).
Abu Musa Al-Ash'ari (May Allah be pleased with him) reported: Messenger of Allah (ﷺ) said, "When a slave of Allah suffers from illness or sets on a journey, he is credited with the equal of whatever good works he used to do when he was healthy or at home". [Al-Bukhari].
Riyad as-Salihin, 133