ENOfficial
Safinah reported the Messenger of Allah (ﷺ) as saying: The caliphate of Prophecy will last thirty years; then Allah will give the Kingdom to whom he wishes; or his kingdom to whom he wishes.
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا عَمْرُو بْنُ عَوْنٍ، حَدَّثَنَا هُشَيْمٌ، عَنِ الْعَوَّامِ بْنِ حَوْشَبٍ، عَنْ سَعِيدِ بْنِ جُمْهَانَ، عَنْ سَفِينَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " خِلاَفَةُ النُّبُوَّةِ ثَلاَثُونَ سَنَةً ثُمَّ يُؤْتِي اللَّهُ الْمُلْكَ مَنْ يَشَاءُ - أَوْ مُلْكَهُ مَنْ يَشَاءُ - " .
sunnah.com