Al-Adab Al-Mufrad, Book 34, Hadith 824 (English) ⓘ
It is reported that al-Harith ibn Abza said, "I was present at Hunayn with the Prophet, may Allah bless him and grant him peace, and he asked me, 'What is your name?' 'Ghurab,' I replied. He said, 'No, your name is Muslim.'"
حَدَّثَنَا مُحَمَّدُ بْنُ سِنَانٍ، قَالَ: حَدَّثَنَا عَبْدُ اللهِ بْنُ الْحَارِثِ بْنِ أَبْزَى قَالَ: حَدَّثَتْنِي أُمِّي رَائِطَةُ بِنْتُ مُسْلِمٍ، عَنْ أَبِيهَا قَالَ: شَهِدْتُ مَعَ النَّبِيِّ صلى الله عليه وسلم حُنَيْنًا، فَقَالَ لِي: مَا اسْمُكَ؟ قُلْتُ: غُرَابٌ، قَالَ: لا، بَلِ اسْمُكَ مُسْلِمٌ.
also referenced under: Hadith 824 (Reference) & Book 34, Hadith 14 (In-Book)