ENOfficial
‘Abdallah b. 'Amr reported God’s messenger as saying, “God recorded the fates of all creatures 50,000 years before creating the heavens and the earth, and His throne was upon the water.” Muslim transmitted it.
Source: sunnah.com
Other translations
Arabic
عَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «كَتَبَ اللَّهُ مقادير الْخَلَائق قبل أَن يخلق السَّمَوَات وَالْأَرْضَ بِخَمْسِينَ أَلْفَ سَنَةٍ» قَالَ: «وَكَانَ عَرْشُهُ على المَاء» . رَوَاهُ مُسلم
sunnah.com