It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever marries has completed half of faith, so let him fear Allah in the remaining half."
Hadith Referenceالمعجم الأوسط / باب الميم / 7647
Hadith Takhrij«أخرجه الطبراني فى «الأوسط» برقم: 8794»