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
tabarani:15353 – ʿAbdullāh b. Aḥmad b. Ḥanbal > Naṣr b. ʿAlī > Ibrāhīm b. ʿAṭāʾ a freed slave of ʿImrān b. Ḥuṣayn from his father

[Machine] That Imran bin Husain had a brother who was killed during the time of ignorance, so Imran sought revenge and killed seventy people in return.  

الطبراني:١٥٣٥٣ – حَدَّثَنَا عَبْدُ اللهِ بْنُ أَحْمَدَ بْنِ حَنْبَلٍ ثنا نَصْرُ بْنُ عَلِيٍّ ثنا إِبْرَاهِيمُ بْنُ عَطَاءٍ مَوْلَى عِمْرَانَ بْنِ حُصَيْنٍ عَنْ أَبِيهِ

أَنَّ عِمْرَانَ بْنَ حُصَيْنٍ «قُتِلَ لَهُ أَخٌ فِي الْجَاهِلِيَّةِ فَقَتَلَ بِهِ سَبْعِينَ»