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.
tabarani:10367al-Ḥusayn b. Isḥāq al-Tustarī > ʿUthmān b. Abū Shaybah > Abū Usāmah > Misʿar

[Machine] That he wrote his father Abdul Rahman with his own hands, and then he said, "By Allah, besides whom there is no other god, I have never seen anyone more firm against aggressors than the Messenger of Allah ﷺ ."  

الطبراني:١٠٣٦٧حَدَّثَنَا الْحُسَيْنُ بْنُ إِسْحَاقَ التُّسْتَرِيُّ ثنا عُثْمَانُ بْنُ أَبِي شَيْبَةَ ثنا أَبُو أُسَامَةَ عَنْ مِسْعَرٍ قَالَ أَخْرَجَ إِلَيَّ مَعْنُ بْنُ عَبْدِ الرَّحْمَنِ كِتَابًا فَحَلَفَ لِي

أَنَّهُ خَطُّ أَبِيهِ عَبْدِ الرَّحْمَنِ بِيَدِهِ فَإِذَا فِيهِ قَالَ عَبْدُ اللهِ «وَاللهِ الَّذِي لَا إِلَهَ غَيْرُهُ مَا رَأَيْتُ أَحَدًا أَشَدَّ عَلَى الْمُتَنَطِّعِينَ مِنْ رَسُولِ اللهِ ﷺ»