"The Messenger of Allah said: 'Whoever is given something for the rest of his life, it belongs to him for as long as he lives and after he dies.'" (Using translation from Nasāʾī 3730)
قَالَ رَسُولُ اللهِ ﷺ «مَنْ أُعْطِيَ شَيْئًا حَيَاتَهُ فَهُوَ لَهُ حَيَاتَهُ وَمَوْتَهُ»