Love is one of the duties of Islam and one of the pillars of the Islamic system. One should give salaams to those whom one knows and those whom one does not know, out of sincerity towards Allaah; one should not try to impress other people by giving salaams only to those whom one knows and no-one else. This also entails an attitude of humility and spreading the symbols of this ummah through the word of salaam.”

Thus the Prophet (peace and blessings of Allaah be upon him) explained that this salaam spreads love and brotherhood. Muslim (54), Ahmad (2/391), and al-Tirmidhi (2513) narrated from Abu Hurayrah (may Allaah be pleased with him) that the Messenger of Allaah (peace and blessings of Allaah be upon him) said:

“You will not enter Paradise until you believe, and you will not believe until you love one another. Shall I not tell you about something which, if you do it, you will love one another? Spread salaam amongst yourselves.”
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