Abu Huraira (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "You cannot enter Paradise until you become believers, and you cannot become believers until you love one another. Shall I not tell you about something which, if you do it, you will love one another? Spread peace among yourselves." Narrated by Muslim.
Hadith Referenceمشكوة المصابيح / كتاب الآداب / 4631
Hadith Gradingالألبانی:صَحِيحٌ | زبیر علی زئی:صحيح
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «رواه مسلم (54/93)»