حَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، وَابْنُ، بَشَّارٍ قَالاَ حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، قَالَ سَمِعْتُ قَتَادَةَ، يُحَدِّثُ عَنْ أَنَسِ بْنِ مَالِكٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏"‏ لاَ يُؤْمِنُ أَحَدُكُمْ حَتَّى يُحِبَّ لأَخِيهِ - أَوْ قَالَ لِجَارِهِ - مَا يُحِبُّ لِنَفْسِهِ ‏"‏ ‏.‏

It is narrated on the authority of Anas b. Malik that the Prophet (may peace and blessings be upon him) observed: "None amongst you believes (truly) until he loves for his brother" - or he said "for his neighbour" - "that which he loves for himself." Translation Not Available

Book Ref: Sahih Muslim Book 1 Hadith 72
Web Ref:  Sahih Muslim Book 1 Hadith 45 a