Whoever wishes to look upon a man from the people of Paradise, let him look at Husayn bin Ali, for I heard the Messenger of Allah ﷺ say so.
من سره أن ينظر إلى رجل من أهل الجنة فلينظر إلى الحسين بن علي فإني سمعت رسول الله ﷺ يقوله.
Ahmad narrated it in Fadail al-Sahabah (1372), and Abu Yaala (1874), and Ibn Hibban graded it sahih (6966), all of them via the route of Rabi bin Saad Jafi, from Abdul-Rahman bin Sabit, from Jabir bin Abdullah, who related it. Ahmad's wording was, "Whoever loves to look at the master of the youth of the people of Paradise." Its chain is hasan because of Rabi bin Saad, also said to be Saeed, Jafi, for he is hasan al-hadith. However, Ibn Main found fault with it on account of disconnection, saying that Abdul-Rahman bin Sabit did not hear from Jabir, as Ibn Abu Hatim mentioned in his Marasil (p. 128). But Bukhari said in Tarikh al-Kabir (5/301-302) that he did hear from Jabir. And Ibn Abu Hatim said in Jarh wa Tadil (5/240), "His narration from Jabir bin Abdullah is connected." Ibn Hajar said in Isabah (6718) that he did meet Jabir. Haythami mentioned it in Majma (9/187) and said, "Abu Yaala narrated it, and its narrators are the narrators of Sahih, except for Rabi bin Saad, also said to be Ibn Saeed, and he is trustworthy."Tabarani also narrated it in Kabir (3/39), and Bazzar in Kashf Astar (2636), both of them via the route of Jabir (that is, Ibn Yazid Jafi), from Abdul-Rahman bin Sabit, from Jabir bin Abdullah, who said that the Messenger of Allah ﷺ said, "Hasan and Husayn are the masters of the youth of the people of Paradise." Bazzar confined himself to mentioning Hasan and did not mention Husayn. Jabir Jafi is daif by the agreement of the scholars, and it is on this account that Haythami found fault with it in Majma (9/178).