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.
darimi:268Ismāʿīl b. Abān > Ibn al-Qāsim b. Qays > Yūnus b. Sayf al-Ḥimṣī > Abū Kabshah al-Salūlī > Abū al-Dardāʾ

[Machine] I heard Abu Darda say, "Indeed, from the worst of people in the sight of Allah on the Day of Resurrection is a scholar who does not benefit from his knowledge."  

الدارمي:٢٦٨أَخْبَرَنَا إِسْمَاعِيلُ بْنُ أَبَانَ عَنِ ابْنِ الْقَاسِمِ بْنِ قَيْسٍ قال حَدَّثَنِي يُونُسُ بْنُ سَيْفٍ الْحِمْصِيُّ قَالَ حَدَّثَنِي أَبُو كَبْشَةَ السَّلُولِيُّ قَالَ

سَمِعْتُ أَبَا الدَّرْدَاءِ يَقُولُ «إِنَّ مِنْ أَشَرِّ النَّاسِ عِنْدَ اللَّهِ مَنْزِلَةً يَوْمَ الْقِيَامَةِ عَالِمٌ لَا يَنْتَفِعُ بِعِلْمِهِ»