The Source of Traditions on Imam al-Riḍā (Vol 2) · Hadith 93 (#Ḥadīth #93)
Chapter 1 | Traditions about Ar-Ridha
93 - وَبِهذَا الإِسنادِ قالَ: قالَ رَسُولُ اللَّهِ صَلَّى اللهُعَلَيْهِ وَآلِهِ: مَن ضَمِنَ لي واحِدةً ضَمِنتُ لَهُ أَرْبَعَةَ: يَصِلُ رَحِمَهُ فَيُحِبُّهُ اللَّهُ وَيُوَسِّعُ عَلَيْهِ فِي رِزقِه، وَيَزِيدُ فِي عُمْرِهِ، وَيُدخِلُهُ الجَنَّةَ الَّتِي وَعَدَهُ.
31-93 According to the same documentation, God’s Prophet (S) said, “Whoever guarantees one thing for me, I will guarantee four things for him. If one guarantees to visit his relations of kin, I guarantee that he will be loved by God, his sustenance will increase, his life will be extended, and he will enter the promised Paradise.”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).