How sound is the hadith: "No building was built in Islam more beloved to Allah Almighty than marriage," attributed to the Prophet, peace and blessings be upon him, and is it found in the accredited books of Ahlus Sunnah?

The aforementioned hadith has no basis in the books of the Ahl al-Sunnah (Sunnis); rather, it is mentioned by the Shi'a in their books. A hadith that is unique to the Shi'a and not narrated by the Ahl al-Sunnah is not an authentic hadith. Marriage is among the traditions of the Messengers, and the Prophet, peace and blessings be upon him, encouraged young people to marry, saying: "O young people! Whoever among you can afford to marry, let him do so, for it helps him lower his gaze and guard his chastity. And whoever cannot afford it, let him fast, for it will be a shield for him." Furthermore, the Prophet, peace and blessings be upon him, said: "What is wrong with some people who say such and such? But I pray and I sleep, and I fast and I break my fast, and I marry women. So whoever turns away from my Sunnah is not of me." What has been reported in the Qur'an and Sunnah regarding the virtue of marriage is sufficient, rendering unnecessary the hadiths that have no basis among the Ahl al-Sunnah.