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
nasai:5752 – ʿUbaydullāh b. Saʿīd > Abū Usāmah

"I heard Abu Usamah say: 'I never saw any man more assiduous in seeking knowledge than 'Abdullah bin Al-Mubarak, not in Ash-Sham, Egypt, Yemen or the Hijaz.'"  

النسائي:٥٧٥٢ – أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ سَعِيدٍ قَالَ

سَمِعْتُ أَبَا أُسَامَةَ يَقُولُ مَا رَأَيْتُ رَجُلاً أَطْلَبَ لِلْعِلْمِ مِنْ عَبْدِ اللَّهِ بْنِ الْمُبَارَكِ الشَّامَاتِ وَمِصْرَ وَالْيَمَنَ وَالْحِجَازَ  

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Collected by Nasāʾī's Kubrá
nasai-kubra:5243 – ʿUbaydullāh b. Saʿīd > Abū Usāmah

"I heard Abu Usamah say: 'I never saw any man more assiduous in seeking knowledge than 'Abdullah bin Al-Mubarak, not in Ash-Sham, Egypt, Yemen or the Hijaz.'" (Using translation from Nasāʾī 5752)  

الكبرى للنسائي:٥٢٤٣ – أَخْبَرَنَا عُبَيْدُ اللهِ بْنُ سَعِيدٍ قَالَ

سَمِعْتُ أَبَا أُسَامَةَ يَقُولُ «مَا رَأَيْتُ رَجُلًا أَطْلَبَ لِلْعِلْمِ مِنْ عَبْدِ اللهِ بْنِ الْمُبَارَكِ فِي الشَّامَاتِ وَمِصْرَ وَالْيَمَنِ وَالْحِجَازِ»