Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
tabarani:1426 – Aḥmad b. Muḥammad b. Yaḥyá b. Ḥamzah al-Dimashqī > Isḥāq b. Ibrāhīm Abū al-Naḍr > Yazīd b. Rabīʿah > Abū al-Ashʿath > Thawbān

[Machine] The Messenger of Allah ﷺ said, "Why do the Banu Al-Abbas separate themselves from my Ummah, shed their blood, and clothe them in black garments? May Allah clothe them in garments of the fire."  

الطبراني:١٤٢٦ – حَدَّثَنَا أَحْمَدُ بْنُ مُحَمَّدِ بْنِ يَحْيَى بْنِ حَمْزَةَ الدِّمَشْقِيُّ ثنا إِسْحَاقُ بْنُ إِبْرَاهِيمَ أَبُو النَّضْرِ ثنا يَزِيدُ بْنُ رَبِيعَةَ ثنا أَبُو الْأَشْعَثِ عَنْ ثَوْبَانَ قَالَ

قَالَ رَسُولُ اللهِ ﷺ «مَا لِي وَلِبَنِي الْعَبَّاسِ شَيَّعُوا أُمَّتِي وَسَفَكُوا دِمَاءَها وأَلْبَسُوها ثِيَابَ السَّوَادِ أَلْبَسَهمُ اللهُ ثِيَابَ النَّارِ»  

See similar narrations below:

Collected by Suyūṭī
suyuti:19153a –
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السيوطي:١٩١٥٣a –

"مَا لِي وَلبَني الْعَبَّاسِ! ! شَيَّعُوا أُمَّتِي، وَسَفَكُوا دمَاءَهَا، وَألْبَسُوها ثِيَابَ السَّوادِ، أَلْبسَهَم الله ثِيَابَ النَّارِ".

طب: عن ثوبان، نعيم بن حماد في الفتن.  

عن مكحول مرسلًا، وعن عَليٍّ موصولا