عَن ثَوبَانَ رَضِيَ اللهُ عَنهُ قَالَ قَالَ رَسُولُ اللهِ صَلَّى اللهُ عَليهِ وَسَلَّمَ : إنَّ الْمُسْلِمَ إذَا عَادَ أَخَاهُ الْمُسْلِمَ لَمْ يَزَلْ فِي خُرْفَةِ الْجَنَّةِ حَتَّى يَرْجِعَ (مسلم 2/318)
Hadhrat Thaubaan (Radhiyallahu Anhu) reports that Rasulullah (Sallallahu Alaihi Wasallam) said: “The one who visits his Muslim brother (who is sick) continues plucking from the fruits of Jannah from the time he sets out until he returns.”
Ihyaaud Deen An Effort to Revive Deen in Totality