´Narrated Ya'la bin Murrah:` that the Messenger of Allah (ﷺ) said: "Husain is from me, and I am from Husain. Allah loves whoever loves Husain. Husain is a Sibt among the Asbat." [Asbat, plural of Sibt: A great tribe. Meaning, Al-Husain would have many offspring, such that they would become a great tribe. And this has indeed occurred. See Tuhfat Al-Ahwadhi (4/341).]
Hadith Referenceسنن ترمذي / كتاب المناقب عن رسول الله صلى الله عليه وسلم / 3775
Hadith Gradingالألبانی:حسن، ابن ماجة (144)
Hadith Takhrij«سنن ابن ماجہ/المقدمة 11 (144) ( تحفة الأشراف : 11850) ، و مسند احمد (4/172) (حسن) (تراجع الالبانی 375) الصحیحہ 1227)»