Abdullah ibn Mas’ud reported: The Messenger of Allah, peace and blessings be upon him, said, “Verily, peace is among the names of Allah that He has placed on the earth, so spread it between yourselves. If a man greets people with peace and they answer him, he is favored by a degree over them as he has reminded them. If they do not answer him, he is answered by the angels who are better and purer than them.”
Source: al-Mu’jam al-Kabīr lil-Ṭabarānī 10391
Grade: Sahih (authentic) according to Al-Albani
عَنْ عَبْدِ اللهِ بْنِ مَسْعُودٍ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِنَّ السَّلَامَ اسْمٌ مِنْ أَسْمَاءِ اللَّهِ وَضَعَهُ فِي الْأَرْضِ فَأَفْشُوهُ فِيكُمْ فَإِنَّ الرَّجُلَ إِذَا سَلَّمَ عَلَى الْقَوْمِ فَرَدُّوا عَلَيْهِ كَانَ لَهُ عَلَيْهِمْ فَضْلُ دَرَجَةٍ لِأَنَّهُ ذَكَّرَهُمْ فَإِنْ لَمْ يَرُدُّوا عَلَيْهِ رَدَّ عَلَيْهِ مَنْ هُوَ خَيْرٌ مِنْهُمْ وَأَطْيَبُ يعني الملائكة
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