The Source of Traditions on Imam al-Riḍā (Vol 2) · Hadith 278 (#Ḥadīth #278)

278 - وَبِإِسْنادِهِ عَنْ عَلِيِ a.sُ قالَ: قالَالنَّبِيُ صَلَّى اللهُ عَلَيْهِ وَآلِهِ: يَقْتُلُ الحُسَيْنَ شَرُّ الاُمَّةِ، وَيَتَبَرَّأُ مِن وُلْدِهِ مَن يَكفُرُ بي.

31-278 According to the same documentation, on the authority of Ali , the Prophet (S) said, “The most wicked member of this nation will kill Al-Husayn . Whoever denounces Al-Husayn’s progeny has denounced me.”

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).