It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: By Him in Whose hand is my soul, you will not enter Paradise until you become complete believers, and you will not become complete believers until you love one another. Shall I not tell you something which, if you do it, you will love one another? Spread salam (greetings of peace) among yourselves.