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
darimi:183 – Muḥammad b. Yūsuf > ʿUmayr b. ʿArfajah > Razīn Abū al-Nuʿmān > ʿAlī b. Abū Ṭālib > Idhā Suʾiltum ʿAmmā Lā Taʿlamūn Fāhrubūā > And Kayf al-Harab Yā Amīr al-Muʾminīn

[Machine] "If you are asked about something you do not know, then flee." He said, "But how do we flee, O Commander of the Faithful?" He said, "You say Allah knows best."  

الدارمي:١٨٣ – أَخْبَرَنَا مُحَمَّدُ بْنُ يُوسُفَ حَدَّثَنَا عُمَيْرُ بْنُ عَرْفَجَةَ حَدَّثَنَا رَزِينٌ أَبُو النُّعْمَانِ عَنْ عَلِيِّ بْنِ أَبِي طَالِبٍ قَالَ

«إِذَا سُئِلْتُمْ عَمَّا لَا تَعْلَمُونَ فَاهْرُبُوا» قَالَ وَكَيْفَ الْهَرَبُ يَا أَمِيرَ الْمُؤْمِنِينَ؟ قَالَ تَقُولُونَ اللَّهُ أَعْلَمُ