Hadith of Salam
"When the Messenger of Allah ﷺ arrived- meaning in Al-Madinah – the people came out to meet him. It was said that the Messenger of Allah ﷺ had arrived, so I went among the people to get a look at him. When I gazed upon the face of the Messenger of Allah ﷺ, I knew that this face was not the face of a liar. The first thing that he spoke about was that he said: 'O you people! Spread the Salam, feed(others), and perform Salat while the people are sleeping; you will enter Paradise with(the greeting of) Salam.'” (Sahih)
لَمَّا قَدِمَ رَسُولُ اللَّهِ ﷺ الْمَدِينَةَ انْجَفَلَ النَّاسُ إِلَيْهِ وَقِيلَ قَدِمَ رَسُولُ اللَّهِ ﷺ فَجِئْتُ فِي النَّاسِ لأَنْظُرَ إِلَيْهِ فَلَمَّا اسْتَبَنْتُ وَجْهَ رَسُولِ اللَّهِ ﷺ عَرَفْتُ أَنَّ وَجْهَهُ لَيْسَ بِوَجْهِ كَذَّابٍ وَكَانَ أَوَّلَ شَيْءٍ تَكَلَّمَ بِهِ أَنْ قَالَ أَيُّهَا النَّاسُ أَفْشُوا السَّلاَمَ وَأَطْعِمُوا الطَّعَامَ وَصَلُّوا وَالنَّاسُ نِيَامٌ تَدْخُلُونَ الْجَنَّةَ بِسَلاَمٍ