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].