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
bayhaqi:7111 – Abū ʿAbdullāh al-Ḥāfiẓ And ʾAbū Saʿīd b. Abū ʿAmr > Abū al-ʿAbbās Muḥammad b. Yaʿqūb > Aḥmad b. ʿAbd al-Jabbār > Abū Muʿāwiyah > al-Aʿmash > Abū Ṣāliḥ > Abū Hurayrah ʿAnh

[Machine] The Prophet Muhammad ﷺ said, "There are two things in people that are considered disbelief: wailing and slandering lineage."  

البيهقي:٧١١١ – أَخْبَرَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ وَأَبُو سَعِيدِ بْنُ أَبِي عَمْرٍو قَالَا ثنا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ ثنا أَحْمَدُ بْنُ عَبْدِ الْجَبَّارِ ثنا أَبُو مُعَاوِيَةَ عَنِ الْأَعْمَشِ عَنْ أَبِي صَالِحٍ عَنْ أَبِي هُرَيْرَةَ عَنْهُ قَالَ

قَالَ رَسُولُ اللهِ ﷺ اثْنَتَانِ فِي النَّاسِ وَهُمَا بِهِمْ كُفْرٌ النِّيَاحَةُ وَالطَّعْنُ فِي النَّسَبِ  

رَوَاهُ مُسْلِمٌ فِي الصَّحِيحِ عَنْ أَبِي بَكْرِ بْنِ أَبِي شَيْبَةَ عَنْ أَبِي مُعَاوِيَةَ