عَن جَابِرٍ رَضِيَ اللهُ عَنهُ قَالَ قَالَ رَسُولُ اللهِ صَلَّى اللهُ عَلَيهِ وَسَلّمَ: مَن عَادَ مَرِيضًا لَم يَزَلْ يَخُوضُ الرَّحْمَةَ حَتَى يَجْلِسَ فَإِذَا جَلَسَ اِغْتَمَسَ فِيهَا . رواه مالك وأحمد (مشكوة المصابيح 1/138)
Hadhrat Jaabir (Radhiyallahu Anhu) reports that Nabi (Sallallahu Alaihi Wasallam) said: "When a person goes to visit the sick he enters into the rahmah (mercy) of Allah Ta’ala. Thereafter, when he sits with the sick person, he is completely covered in the rahmah (mercy) of Allah Ta’ala."