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
ahmad-zuhd:2217 – ʿAbdullāh from my father > Ḥusayn b. ʿAlī > Layth b. Abū Sulaym

[Machine] A mujahid used to say, "The knowledgeable person is the one who fears Allah."  

الزهد لأحمد:٢٢١٧ – حَدَّثَنَا عَبْدُ اللَّهِ حَدَّثَنِي أَبِي حَدَّثَنَا حُسَيْنُ بْنُ عَلِيٍّ عَنْ لَيْثِ بْنِ أَبِي سُلَيْمٍ قَالَ

كَانَ مُجَاهِدٌ يَقُولُ «الْفَقِيهُ مَنْ يَخَافُ اللَّهَ ﷻ»  

See similar narrations below:

Collected by Dārimī
darimi:264 – Mujāhid b. Mūsá > ʿAbdullāh b. Numayr > Mālik b. Mighwal > a man Lilshhaʿbī Aftinī Ayyuhā al-ʿĀlim

[Machine] "The knowledgeable one is the one who fears Allah, Mighty and Majestic."  

الدارمي:٢٦٤ – أَخْبَرَنَا مُجَاهِدُ بْنُ مُوسَى حَدَّثَنَا عَبْدُ اللَّهِ بْنُ نُمَيْرٍ عَنْ مَالِكِ بْنِ مِغْوَلٍ قَالَ قَالَ رَجُلٌ لِلشَّعْبِيِّ أَفْتِنِي أَيُّهَا الْعَالِمُ فَقَالَ

«الْعَالِمُ مَنْ يَخَافُ اللَّهَ» ﷻ