It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) used to say: "After the fear of Allah, a Muslim gains nothing better for himself than a righteous wife: if he commands her, she obeys him; if he looks at her, she pleases him; if he adjures her by an oath, she fulfils it; and if he is absent from her, she remains faithful to him regarding herself."
Hadith Referenceالمعجم الكبير للطبراني / باب الصاد / 7850