رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 362
The Book of Miscellany
Visiting the Pious Persons, loving them and adoption of their company
وَعَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: مَنْ عَادَ مَرِيضًا أَوْ زَارَ أَخًا لَهُ فِي اللَّهِ، نَادَاهُ مُنَادٍ، بأن طِبْتَ، وَطَابَ مَمْشَاكَ، وَتَبَوَّأْتَ مِنَ الْجَنَّةِ مَنْزِلًا ((رَوَاهُ التِّرْمِذِيّ وَقَالَ : حَدِيثٌ حَسَنٌ ، وَفِي بَعْضِ النُّسَخِ غريب)).
Abu Hurairah (May Allah be pleased with him) reported: I heard Messenger of Allah (ﷺ) saying, "Whosoever visits an ailing person or a brother of his to seek the Pleasure of Allah, an announcer (angel) calls out: 'May you be happy, may your walking be blessed, and may you be awarded a dignified position in Jannah". [At- Tirmidhi, who categorized it as Hadith Hasan].
Riyad as-Salihin, 362