When Umar bin Khattab took office, he addressed the people and said, "The Messenger of Allah ﷺ permitted temporary marriage three times, then prohibited it. By Allah, I will not learn of any married man practicing temporary marriage without stoning him to death, unless he brings me four witnesses to testify that the Messenger of Allah ﷺ made it lawful again after having prohibited it."
لما ولى عمر بن الخطاب، خطب الناس فقال: إن رسول الله ﷺ أذن في المتعة ثلاثا، ثم حرمها. والله لا أعلم أحدا يتمتع وهو محصن إلا رجمته بالحجارة، إلا أن يأتيني بأربعة يشهدون أن رسول الله ﷺ أحلها بعد إذ حرمها.
Ibn Majah (1963) narrated it from Muhammad bin Khalaf Asqalani, who said, Firyabi narrated to us, from Aban bin Abu Hazim, from Abu Bakr bin Hafs, from Ibn Umar, and he related it.Its chain is hasan, due to the discussion surrounding Aban, who is Aban bin Abdullah bin Abu Hazim Ahmasi Kufi. There is disagreement about him, but his hadith is hasan when he does not contradict others or bring something in his narration that is objected to.Abu Bakr bin Hafs is Abdullah bin Hafs bin Umar bin Saad bin Abu Waqqas Zuhri, Abu Bakr Madani, well known by his kunya, and one of the narrators found among the compilers of the six books.