What is the ruling on temporary marriage (Mut'ah) in Sharia, is it considered adultery, and how did the Prophet, peace and blessings be upon him, permit it for a period?

Marriage of Mut'ah is invalid and forbidden by consensus. Scholars have cited evidence for its prohibition from the Qur'an, the Sunnah, and sound reasoning. In the Qur'an, the woman in Mut'ah is neither a wife nor a bondwoman, and such a marriage does not constitute chastity. In the Sunnah, authentic narrations have been reported prohibiting Mut'ah until the Day of Judgment. Sound reasoning indicates that it leads to harms such as the neglect of children and the confusion of lineages. The Companions unanimously agreed on its prohibition after it was temporarily permissible in the early days of Islam, with the prohibition being the final ruling.