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.
bayhaqi:21159Abū al-Ḥasan ʿAlī b. Muḥammad al-Muqriʾ > al-Ḥasan b. Muḥammad b. Isḥāq > Yūsuf b. Yaʿqūb > Aḥmad b. ʿĪsá > Ibn Wahb > Ibn Lahīʿah and ʿAmr b. al-Ḥārith > Yazīd b. Abū Ḥabīb > Sinān / Ibn Saʿd > Anas b. Mālik

from the Prophet ﷺ that he said, "Do you know what ʿi’ḍah (calumny, slander, or causing separation) is?" They said, "Allah and His Messenger know best." The Prophet said, "It is spreading news between people to ruin their relationships."  

البيهقي:٢١١٥٩وَأَخْبَرَنَا أَبُو الْحَسَنِ عَلِيُّ بْنُ مُحَمَّدٍ الْمُقْرِئُ أنبأ الْحَسَنُ بْنُ مُحَمَّدِ بْنِ إِسْحَاقَ ثنا يُوسُفُ بْنُ يَعْقُوبَ ثنا أَحْمَدُ بْنُ عِيسَى ثنا ابْنُ وَهْبٍ أَخْبَرَنِي ابْنُ لَهِيعَةَ وَعَمْرُو بْنُ الْحَارِثِ عَنْ يَزِيدَ بْنِ أَبِي حَبِيبٍ عَنْ سِنَانٍ يَعْنِي ابْنَ سَعْدٍ عَنْ أَنَسِ بْنِ مَالِكٍ

عَنِ النَّبِيِّ ﷺ أَنَّهُ قَالَ: «أَتَدْرُونَ مَا الْعِضَةُ؟» قَالُوا: اللهُ وَرَسُولُهُ أَعْلَمُ، قَالَ: «نَقْلُ الْحَدِيثِ مِنْ بَعْضِ النَّاسِ إِلَى بَعْضٍ لِيُفْسِدَ بَيْنَهُمْ»  


See similar narrations below:

Collected by Suyūṭī
suyuti:333a

"Do you know what ʿi’ḍah (calumny, slander, or causing separation) is? It is spreading news between people to ruin their relationships."  

السيوطي:٣٣٣aعن أنس

«أتدرون ما الْعَضْهُ (العِضَةُ)؟ نقْل الحديثِ من بعض الناسِ إلى بعضٍ ليُفْسدوا بينهم»  

[خ] البخاري في الأدب، [ق] البيهقى في السنن عن أنس