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
bayhaqi:13064 – Abū ʿAbdullāh al-Ḥāfiẓ

[Machine] The first banner was raised in Islam by Abdullah ibn Jahsh.  

البيهقي:١٣٠٦٤ – حَدَّثَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ ثنا أَبُو سَعِيدٍ أَحْمَدُ بْنُ يَعْقُوبَ الثَّقَفِيُّ ثنا مُحَمَّدُ بْنُ عَبْدِ اللهِ الْحَضْرَمِيُّ ثنا هَنَّادُ بْنُ السَّرِيِّ ثنا أَبُو بَكْرِ بْنُ عَيَّاشٍ عَنْ عَاصِمٍ عَنْ زِرٍّ عَنْ عَبْدِ اللهِ قَالَ

أَوَّلُ رَايَةٍ عُقِدَ فِي الْإِسْلَامِ لِعَبْدِ اللهِ بْنِ جَحْشٍ  

See similar narrations below:

Collected by Ḥākim
hakim:4903 – my father

[Machine] "The first flag pledged in Islam was by Abdullah ibn Jash."  

الحاكم:٤٩٠٣ – حَدَّثَنَا أَبُو سَعِيدٍ أَحْمَدُ بْنُ يَعْقُوبَ الثَّقَفِيُّ ثنا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ الْحَضْرَمِيُّ ثنا هَنَّادُ بْنُ السَّرِيِّ ثنا أَبُو بَكْرِ بْنُ عَيَّاشٍ عَنْ عَاصِمٍ عَنْ زِرٍّ عَنْ عَبْدِ اللَّهِ قَالَ

«أَوَّلُ رَايَةٍ عُقِدَتْ فِي الْإِسْلَامِ لِعَبْدِ اللَّهِ بْنِ جَحْشٍ»  

هَذَا حَدِيثٌ صَحِيحُ الْإِسْنَادِ وَلَمْ يُخَرِّجَاهُ صحيح