Sahih Muslim , Book 33, Hadith 134 (In-Book) ⓘ
This tradition has been handed down through a different chain Of transmitters with the following change in the wording: " I was fourteen years old and he thought me too young (to participate in the fight)."
وَحَدَّثَنَاهُ أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ إِدْرِيسَ، وَعَبْدُ الرَّحِيمِ بْنُ، سُلَيْمَانَ ح وَحَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا عَبْدُ الْوَهَّابِ، - يَعْنِي الثَّقَفِيَّ - جَمِيعًا عَنْ عُبَيْدِ، اللَّهِ بِهَذَا الإِسْنَادِ غَيْرَ أَنَّ فِي حَدِيثِهِمْ وَأَنَا ابْنُ أَرْبَعَ عَشْرَةَ سَنَةً فَاسْتَصْغَرَنِي .
also referenced under: Hadith 1868 (Reference) & Book 20, Hadith 4606 (USC-MSA)