Spread the Salam, feed(others)
'Abdullah ibn Salam, may Allah be pleased with him, said:
"When the Messenger of Allah ( may the peace and blessings of Allah be pon him ) arrived- meaning in Al-Madinah – the people came out to meet him. It was said that the Messenger of Allah ( may the peace and blessings of Allah be pon him ) 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 ( may the peace and blessings of Allah be pon him ), 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 ( Islamic greeting ), feed (others), and perform the night prayer while the people are sleeping; you will enter Paradise peacefully.'”
[At- Tirmidhi]
When Allah wills good for a servant, he guides him to his straight path, and established his heart on the sincere faith, so he enjoys the good life in this world and in the Hereafter.
This commandment included four branches of the faith.
The first branch: spreading the salam ( Islamic greeting ) ;to say and to return it.
Spreading the salam carries the spread of peace among the believers in the country, peace is safety; if a man greeted his brother with the salam, he secured him and his money, the same applies if he returned the salam to him. In this way peace reigns among believers, so their hearts and souls converge. Their goals converge on the support of religion and the fulfillment of what they desire in a spirit of cooperation and brotherhood.
The Second branch: Feeding people, ie, to give it kindly to those who need it, the reward will be multiplied if one gave food for the family members, relatives and guests, the poor, the needy and the like.
The food includes all that is edible or drinkable, one tastes it, and the body benefits from it.
Feeding people is a good tradition of the Arabs. Then Islam approved it, called people for it, and considered it a branch of faith and one of the rituals of Islam in many events.
Gathering to have food is a source of blessing, he who invited his brother to eat with him even if it is a little amount of food; then Allah the Almighty will pour his blessings on it, so that it suffices them.
The Third branch: maintaining the ties of kinship, which is one of the highest demands that Islam urges its followers to do. It is one of the greatest acts of worship with which the slave draws closer to his creator.
The Fourth branch: to perform the Prayer at night while people are sleeping.
It is one of the best prayers after the obligatory prayers, as stated in Sahih Muslim. Only the righteous slaves maintain performing it.
These are the four branches of faith mentioned in this commandment, which reserve for the believers good connection to their Lord and good connection with each other.
It is enough to enter the Paradise in peace, without obstacles nor panic nor despair of the mercy of Allah the most Merciful.