حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا أَبُو أُسَامَةَ، عَنْ عَوْفٍ، عَنْ زُرَارَةَ بْنِ أَوْفَى، حَدَّثَنِي عَبْدُ اللَّهِ بْنُ سَلاَمٍ، قَالَ لَمَّا قَدِمَ النَّبِيُّ ـ صلى الله عليه وسلم ـ الْمَدِينَةَ انْجَفَلَ النَّاسُ قِبَلَهُ وَقِيلَ قَدْ قَدِمَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ قَدْ قَدِمَ رَسُولُ اللَّهِ قَدْ قَدِمَ رَسُولُ اللَّهِ ‏.‏ ثَلاَثًا فَجِئْتُ فِي النَّاسِ لأَنْظُرَ فَلَمَّا تَبَيَّنْتُ وَجْهَهُ عَرَفْتُ أَنَّ وَجْهَهُ لَيْسَ بِوَجْهِ كَذَّابٍ فَكَانَ أَوَّلَ شَىْءٍ سَمِعْتُهُ تَكَلَّمَ بِهِ أَنْ قَالَ ‏"‏ يَا أَيُّهَا النَّاسُ أَفْشُوا السَّلاَمَ وَأَطْعِمُوا الطَّعَامَ وَصِلُوا الأَرْحَامَ وَصَلُّوا بِاللَّيْلِ وَالنَّاسُ نِيَامٌ تَدْخُلُوا الْجَنَّةَ بِسَلاَمٍ ‏"‏ ‏.‏

‘Abdullah bin Salam said: “When the Prophet (PBUH) came toAl-Madinah,the people rushed to meet him, and it was said: ‘TheMessenger ofAllah (PBUH) has come! The Messenger of Allah (PBUH) hascome! TheMessenger of Allah (PBUH) has come!’ Three times. I camewith thepeople to see him, and when I saw his face clearly, I knewthat hisface was not the face of a liar. The first thing I heard himsay waswhen he said: ‘O people! Spread (the greeting of) Salam,feed others,uphold the ties of kinship, and pray during the nightwhen people aresleeping, and you will enter Paradise with Salam.”* Translation Not Available

Book reference: Sunan Ibn Majah Book 29 Hadith 3251
Web reference: Sunan Ibn Majah Volume 4 Book 29 Hadith 3251