the Messenger of Allah ﷺ said, "Allah sent Nūḥ at ˹the age of˺ forty years, and he remained with his nation for a thousand years less fifty years inviting them ˹to Islam.˺ He then lived after the flood for sixty years when the number of people increased and they ˹started to˺ spread."  

قَالَ رَسُولُ اللَّهِ ﷺ «بَعَثَ اللَّهُ نُوحًا لِأَرْبَعِينَ سَنَةً وَلَبِثَ فِي قَوْمِهِ أَلْفَ سَنَةٍ إِلَّا خَمْسِينَ عَامًا يَدْعُوهُمْ وَعَاشَ بَعْدَ الطُّوفَانِ سِتِّينَ سَنَةً حَتَّى كَثُرَ النَّاسُ وَفَشَوْا»