Messenger of Allah ﷺ prohibited the contracting of temporary marriage and said: Behold, it is forbidden from this very day of yours to the Day of Resurrection, and he who has given something (as a dower) should not take it back. (Using translation from Muslim 1406l)
أَنَّ رَسُولَ اللهِ ﷺ نَهَى عَنِ الْمُتْعَةِ وَقَالَ «أَلَا إِنَّهَا حَرَامٌ مِنْ يَوْمِكُمْ هَذَا إِلَى يَوْمِ الْقِيَامَةِ وَمَنْ كَانَ أَعْطَى شَيْئًا فَلَا يَأْخُذْهُ»