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
suyuti:2-3524b – ʿMr
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السيوطي:٢-٣٥٢٤b –

"عن عمر قال: إنَّ الإِسْلامَ في بِنَاءٍ وَإِنَّ لَهُ انْهِدَامًا، وَإِنَّمَا تَهْدِمُهُ زَلَّةُ عَالِمٍ، وَجِدَالُ مُنَافِقٍ بِالْقُرآنِ وأَئمةٍ مُضِلِّينَ".  

آدم

See similar narrations below:

Collected by Suyūṭī
suyuti:2-639b – ʿUmar > Yahdim al-Dīn
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السيوطي:٢-٦٣٩b –

"عَنْ عُمَرَ قَالَ: يَهْدِمُ الدِّينَ - وفِى لَفْظٍ: يَهْدِمُ الإِسْلَامَ - ثَلَاثَةٌ: زَلَّةُ عَالمٍ، ومُجَادَلَةُ مُنَافِقٍ بِالْقُرْآنِ، وأئِمةٌ مُضِلُّونَ".  

ابن المبارك، جعفر الفريابى في صفة المنافق، وابن عبد البر في العلم، وابن النجار