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.
bukhari:1188Ḥafṣ b. ʿUmar > Shuʿbah > ʿAbd al-Malik b. ʿUmayr > Qazaʿah > Abū Saʿīd Arbaʿ

I heard Abu Said saying four words. He said, "I heard the Prophet ﷺ (saying the following narrative)." He had participated in twelve holy battles with the Prophet.  

البخاري:١١٨٨حَدَّثَنَا حَفْصُ بْنُ عُمَرَ حَدَّثَنَا شُعْبَةُ قَالَ أَخْبَرَنِي عَبْدُ الْمَلِكِ بْنُ عُمَيْرٍ عَنْ قَزَعَةَ قَالَ

سَمِعْتُ أَبَا سَعِيدٍ ؓ أَرْبَعًا قَالَ سَمِعْتُ مِنَ النَّبِيِّ ﷺ وَكَانَ غَزَا مَعَ النَّبِيِّ ﷺ ثِنْتَىْ عَشْرَةَ غَزْوَةً ح