Sayyiduna Abu Hurayrah (may Allah be pleased with him) reports this saying of the Prophet (peace and blessings be upon him): "The dream of a believing servant is one part of the forty parts of prophethood." (Allamah al-Haythami says:) I say: From this Companion the Sahih contains the hadith: "(one part of) forty-six" or "forty-five (parts)".
Al-Bazzar recorded it; its chain contains a narrator, Abdullah bin Isa al-Khazzaz, who is da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب التعبير / 11726