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.‏
Translation

'Abdullah said, "Peace is one of the Names of Allah which Allah has placed on the earth. Extend it among you. When a man greets people and they answer him, then he has a higher degree than them because he reminds them of peace. If no one answers him, he will be answered by one who is better and more excellent.'"