The Book of the Believer · Hadith 153 (#Ḥadīth #8)
Chapter 6 | Visiting a Believer Socially and When He is Ill
153 - وعن أبي عبد الله عليه السلام قال: من زار أخاه المؤمن قال الرب جل جلاله: أيها الزائر، طبت وطابت لك الجنة.
153. It has been reported that Abu 'Abd Allah said: When one visits his brother-in-faith, the Lord [M.G] says, 'O you who are visiting! Rejoice and enjoy Paradise.'
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).