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.
suyuti:21694a
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السيوطي:٢١٦٩٤a

"مَنْ سَبَّ أَحَدًا مِنْ أَصْحَابي، فَعَلَيهِ لَعْنَةُ الله".  

[ش] ابن أبى شيبة عن عطاء مرسلًا، ابن النجار عن عطية بن أَبي سعيد، الشيرازي في الألقاب عن عطاء مرسلًا

See similar narrations below:

Collected by Ṭabarānī, Suyūṭī
tabarani:12709ʿĪsá b. al-Qāsim al-Ṣaydalānī al-Baghdādī > al-Ḥasan b. Qazaʿah > ʿAbdullāh b. Khirāsh > al-ʿAwwām b. Ḥawshab > ʿAbdullāh b. Abū al-Hudhayl > Ibn ʿAbbās

[Machine] The Messenger of Allah ﷺ said, "Whoever curses my companions, upon him is the curse of Allah, the angels, and all the people."  

الطبراني:١٢٧٠٩حَدَّثَنِي عِيسَى بْنُ الْقَاسِمِ الصَّيْدَلَانِيُّ الْبَغْدَادِيُّ ثنا الْحَسَنُ بْنُ قَزَعَةَ ثنا عَبْدُ اللهِ بْنُ خِرَاشٍ عَنِ الْعَوَّامِّ بْنِ حَوْشَبٍ عَنْ عَبْدِ اللهِ بْنِ أَبِي الْهُذَيْلِ عَنِ ابْنِ عَبَّاسٍ قَالَ

قَالَ رَسُولُ اللهِ ﷺ «مَنْ سَبَّ أَصْحَابِي فَعَلَيْهِ لَعْنَةُ اللهِ وَالْمَلَائِكَةِ وَالنَّاسِ أَجْمَعِينَ»