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.
nasai-kubra:8590Abū Usāmah > Abū Kudaynah > Muṭarrif > al-Shaʿbī > Masrūq > ʿAlī b. Abū Ṭālib

[Machine] I heard Ali ibn Abi Talib saying about something that Allah and His Messenger have confirmed. I said, "This is something I have heard." He replied, "The Messenger of Allah ﷺ said, 'War is deceit.'"  

الكبرى للنسائي:٨٥٩٠أَمْلَى عَلَيْنَا عُبَيْدُ اللهِ بْنُ سَعِيدٍ بِنَيْسَابُورٍ قَالَ حَدَّثَنَا أَبُو أُسَامَةَ قَالَ حَدَّثَنَا أَبُو كُدَيْنَةَ عَنْ مُطَرِّفٍ عَنِ الشَّعْبِيِّ عَنْ مَسْرُوقٍ قَالَ

سَمِعْتُ عَلِيَّ بْنَ أَبِي طَالِبٍ يَقُولُ فِي شَيْءٍ صَدَقَ اللهُ وَرَسُولُهُ قُلْتُ «هَذَا شَيْءٌ سَمِعْتُهُ» قَالَ قَالَ رَسُولُ اللهِ ﷺ «الْحَرْبُ خَدْعَةٌ»