It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him): The Prophet (peace and blessings be upon him) said: "Ihsan is of two kinds: one is the ihsan of chastity, and the other is the ihsan of marriage."
Al-Bazzar recorded it, and al-Tabarani in al-Mu'jam al-Awsat. Its chain contains Mubashshir bin Ubayd, who is matruk (abandoned).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الحدود والديات / 10585