Sayyiduna Hudhayfah (may Allah be pleased with him) narrates: I presented myself before the Prophet (peace and blessings be upon him) and performed prayer behind him. Then the Prophet (peace and blessings be upon him) stood up to perform prayer until he completed the ‘Isha prayer. Then the Prophet (peace and blessings be upon him) departed and I followed him. The Prophet (peace and blessings be upon him) said: An angel came before me who had sought permission from his Lord to send salutations upon me. That angel gave me the glad tidings that Hasan and Husayn are the leaders of the youth of Paradise.
Hadith Referenceصحیح ابن حبان / كتاب إخباره ﷺ عن مناقب الصحابة رجالهم ونسائهم بذكر أسمائهم رضوان الله عليهم أجمعين / 6960
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح - «الصحيحة» (796).فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح