Al-Adab Al-Mufrad, Book 42, Hadith 1038 (English) ⓘ
'Abdullah ibn as-Samit said, "I said to Abu Dharr, 'I passed by 'Abdu'r-Rahman ibn Umm al-Hakam and I greeted him and he did not answer me at all. He said, 'Nephew, what harm have suffered from that? Someone better than him answered you ? the angel on his right."
حَدَّثَنَا عَيَّاشُ بْنُ الْوَلِيدِ، قَالَ: حَدَّثَنَا عَبْدُ الأَعْلَى، قَالَ: حَدَّثَنَا سَعِيدٌ، عَنْ قَتَادَةَ، عَنْ حُمَيْدِ بْنِ هِلاَلٍ، عَنْ عَبْدِ اللهِ بْنِ الصَّامِتِ قَالَ: قُلْتُ لأَبِي ذَرٍّ: مَرَرْتُ بِعَبْدِ الرَّحْمَنِ بْنِ أُمِّ الْحَكَمِ فَسَلَّمْتُ، فَمَا رَدَّ عَلَيَّ شَيْئًا؟ فَقَالَ: يَا ابْنَ أَخِي، مَا يَكُونُ عَلَيْكَ مِنْ ذَلِكَ؟ رَدَّ عَلَيْكَ مَنْ هُوَ خَيْرٌ مِنْهُ، مَلَكٌ عَنْ يَمِينِهِ.
also referenced under: Hadith 1038 (Reference) & Book 42, Hadith 75 (In-Book)