Sayyiduna Abu Hurayrah (may Allah be pleased with him) reports this saying of the Prophet (peace and blessings be upon him): "A servant is not a complete believer until his neighbour is safe from his harms. Whoever believes in Allah Almighty and the Last Day should honour his guest, and whoever believes in Allah Almighty and the Last Day should speak good or remain silent. Indeed Allah Almighty loves the forbearing, chaste rich man, and He detests the foul-mouthed sinner and the beggar who persists in asking."
Al-Bazzar recorded it. Its chain contains Muhammad bin Kathir, who is extremely da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأدب / 13027