Salim, the mawla of 'Abdullah ibn 'Amr, said, "When Ibn 'Umar was greeted, he returned it with increase. I came upon him sitting down and said, 'Peace be upon you,' and he said, 'Peace be upon you and the mercy of Allah.' Then I came another time and said, 'Peace be upon you and the mercy of Allah,; and he said, 'Peace be upon you and the mercy of Allah and His blessings.' Then I came to him another time and said, 'Peace be upon you and the mercy of Allah and His blessings,' and he said, 'Peace be upon you and the mercy of Allah and His blessings and the bet of His prayers.'"  

عَنْ سَالِمٍ مَوْلَى عَبْدِ اللهِ بْنِ عَمْرٍو قَالَ وَكَانَ ابْنُ عَمْرٍو إِذَا سُلِّمَ عَلَيْهِ فَرَدَّ زَادَ فَأَتَيْتُهُ وَهُوَ جَالِسٌ فَقُلْتُ السَّلاَمُ عَلَيْكُمْ فَقَالَ السَّلاَمُ عَلَيْكُمْ وَرَحْمَةُ اللهِ ثُمَّ أَتَيْتُهُ مَرَّةً أُخْرَى فَقُلْتُ السَّلاَمُ عَلَيْكُمْ وَرَحْمَةُ اللهِ قَالَ السَّلاَمُ عَلَيْكُمْ وَرَحْمَةُ اللهِ وَبَرَكَاتُهُ ثُمَّ أَتَيْتُهُ مَرَّةً أُخْرَى فَقُلْتُ السَّلاَمُ عَلَيْكُمْ وَرَحْمَةُ اللهِ وَبَرَكَاتُهُ فَقَالَ السَّلاَمُ عَلَيْكُمْ وَرَحْمَةُ اللهِ وَبَرَكَاتُهُ وَطَيِّبُ صَلَوَاتِهِ