A man asked the Prophet ﷺ , "What sort of deeds or (what qualities of) Islam are good?" The Prophet ﷺ replied, 'To feed (the poor) and greet those whom you know and those whom you do not Know (See Hadith No. 27).  

أَنَّ رَجُلاً سَأَلَ النَّبِيَّ ﷺ أَىُّ الإِسْلاَمِ خَيْرٌ قَالَ تُطْعِمُ الطَّعَامَ وَتَقْرَأُ السَّلاَمَ عَلَى مَنْ عَرَفْتَ وَمَنْ لَمْ تَعْرِفْ  

A person asked Messenger of Allah ﷺ . "What (sort of) deeds in or (what qualities of) Islam are good?" He replied, "To feed (the poor) and greet those whom you know and those whom you don't know."  

أَنَّ رَجُلاً سَأَلَ رَسُولَ اللَّهِ ﷺ أَىُّ الإِسْلاَمِ خَيْرٌ قَالَ تُطْعِمُ الطَّعَامَ وَتَقْرَأُ السَّلاَمَ عَلَى مَنْ عَرَفْتَ وَمَنْ لَمْ تَعْرِفْ  

A man asked the Prophet, "What Islamic traits are the best?" The Prophet said, "Feed the people, and greet those whom you know and those whom you do not know."  

أَنَّ رَجُلاً سَأَلَ النَّبِيَّ ﷺ أَىُّ الإِسْلاَمِ خَيْرٌ قَالَ تُطْعِمُ الطَّعَامَ وَتَقْرَأُ السَّلاَمَ عَلَى مَنْ عَرَفْتَ وَعَلَى مَنْ لَمْ تَعْرِفْ  

The Prophet ﷺ said, "Allah created Adam, making him 60 cubits tall. When He created him, He said to him, "Go and greet that group of angels, and listen to their reply, for it will be your greeting (salutation) and the greeting (salutations of your offspring." So, Adam said (to the angels), As-Salamu Alaikum (i.e. Peace be upon you). The angels said, "As-salamu Alaika wa Rahmatu-l-lahi" (i.e. Peace and Allah's Mercy be upon you). Thus the angels added to Adam's salutation the expression, 'Wa Rahmatu-l-lahi,' Any person who will enter Paradise will resemble Adam (in appearance and figure). People have been decreasing in stature since Adam's creation.  

عَنِ النَّبِيِّ ﷺ قَالَ خَلَقَ اللَّهُ آدَمَ وَطُولُهُ سِتُّونَ ذِرَاعًا ثُمَّ قَالَ اذْهَبْ فَسَلِّمْ عَلَى أُولَئِكَ مِنَ الْمَلاَئِكَةِ فَاسْتَمِعْ مَا يُحَيُّونَكَ تَحِيَّتُكَ وَتَحِيَّةُ ذُرِّيَّتِكَ فَقَالَ السَّلاَمُ عَلَيْكُمْ فَقَالُوا السَّلاَمُ عَلَيْكَ وَرَحْمَةُ اللَّهِ فَزَادُوهُ وَرَحْمَةُ اللَّهِ فَكُلُّ مَنْ يَدْخُلُ الْجَنَّةَ عَلَى صُورَةِ آدَمَ فَلَمْ يَزَلِ الْخَلْقُ يَنْقُصُ حَتَّى الآنَ  

The Prophet ﷺ said, "Allah created Adam in His picture, sixty cubits (about 30 meters) in height. When He created him, He said (to him), "Go and greet that group of angels sitting there, and listen what they will say in reply to you, for that will be your greeting and the greeting of your offspring." Adam (went and) said, 'As-Salamu alaikum (Peace be upon you).' They replied, 'AsSalamu-'Alaika wa Rahmatullah (Peace and Allah's Mercy be on you) So they increased 'Wa Rahmatullah' The Prophet ﷺ added 'So whoever will enter Paradise, will be of the shape and picture of Adam Since then the creation of Adam's (offspring) (i.e. stature of human beings is being diminished continuously) to the present time."  

عَنِ النَّبِيِّ ﷺ قَالَ خَلَقَ اللَّهُ آدَمَ عَلَى صُورَتِهِ طُولُهُ سِتُّونَ ذِرَاعًا فَلَمَّا خَلَقَهُ قَالَ اذْهَبْ فَسَلِّمْ عَلَى أُولَئِكَ النَّفَرِ مِنَ الْمَلاَئِكَةِ جُلُوسٌ فَاسْتَمِعْ مَا يُحَيُّونَكَ فَإِنَّهَا تَحِيَّتُكَ وَتَحِيَّةُ ذُرِّيَّتِكَ فَقَالَ السَّلاَمُ عَلَيْكُمْ فَقَالُوا السَّلاَمُ عَلَيْكَ وَرَحْمَةُ اللَّهِ فَزَادُوهُ وَرَحْمَةُ اللَّهِ فَكُلُّ مَنْ يَدْخُلُ الْجَنَّةَ عَلَى صُورَةِ آدَمَ فَلَمْ يَزَلِ الْخَلْقُ يَنْقُصُ بَعْدُ حَتَّى الآنَ  

Messenger of Allah ﷺ ordered us to do seven (things): to visit the sick, to follow the funeral processions, to say Tashmit to a sneezer, to help the weak, to help the oppressed ones, to propagate As-Salam (greeting), and to help others to fulfill their oaths (if it is not sinful). He forbade us to drink from silver utensils, to wear gold rings, to ride on silken saddles, to wear silk clothes, Dibaj (thick silk cloth), Qassiy and Istabraq (two kinds of silk). (See Hadith No. 539, Vol. 7)  

أَمَرَنَا رَسُولُ اللَّهِ ﷺ بِسَبْعٍ بِعِيَادَةِ الْمَرِيضِ وَاتِّبَاعِ الْجَنَائِزِ وَتَشْمِيتِ الْعَاطِسِ وَنَصْرِ الضَّعِيفِ وَعَوْنِ الْمَظْلُومِ وَإِفْشَاءِ السَّلاَمِ وَإِبْرَارِ الْمُقْسِمِ وَنَهَى عَنِ الشُّرْبِ فِي الْفِضَّةِ وَنَهَانَا عَنْ تَخَتُّمِ الذَّهَبِ وَعَنْ رُكُوبِ الْمَيَاثِرِ وَعَنْ لُبْسِ الْحَرِيرِ وَالدِّيبَاجِ وَالْقَسِّيِّ وَالإِسْتَبْرَقِ  

The Messenger of Allah (may peace and blessing be upon him) observed: You shall not enter Paradise so long as you do not affirm belief (in all those things which are the articles of faith) and you will not believe as long as you do not love one another. Should I not direct you to a thing which, if you do, will foster love amongst you: (i. e.) give currency to (the practice of paying salutation to one another by saying) as-salamu alaikum.  

قَالَ رَسُولُ اللَّهِ ﷺ لاَ تَدْخُلُونَ الْجَنَّةَ حَتَّى تُؤْمِنُوا وَلاَ تُؤْمِنُوا حَتَّى تَحَابُّوا أَوَلاَ أَدُلُّكُمْ عَلَى شَىْءٍ إِذَا فَعَلْتُمُوهُ تَحَابَبْتُمْ أَفْشُوا السَّلاَمَ بَيْنَكُمْ  

That the Messenger of Allah ﷺ said: "(All of you) worship Ar-Rahman, feed others, spread the (greeting of) Salam, then you will enter Paradise in security." He said: This Hadith is Hasan Sahih.  

قَالَ رَسُولُ اللَّهِ ﷺ اعْبُدُوا الرَّحْمَنَ وَأَطْعِمُوا الطَّعَامَ وَأَفْشُوا السَّلاَمَ تَدْخُلُوا الْجَنَّةَ بِسَلاَمٍ قَالَ هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ