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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
darimi:158 – Muḥammad b. Yūsuf > Sufyān > al-Aʿmash > Abū Wāʾil

[Machine] "Abdullah said, 'Learn, for surely none of you knows when knowledge will be sought from him.'"  

الدارمي:١٥٨ – أَخْبَرَنَا مُحَمَّدُ بْنُ يُوسُفَ عَنْ سُفْيَانَ عَنِ الْأَعْمَشِ عَنْ أَبِي وَائِلٍ قَالَ قَالَ

عَبْدُ اللَّهِ «تَعَلَّمُوا فَإِنَّ أَحَدَكُمْ لَا يَدْرِي مَتَى يُخْتلَفُ إِلَيْهِ»