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Al-Adab al-Mufrad 824
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.
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.'"
Cited in Al-Adab al-Mufrad (No. 824).