"Any man who gives a lifelong gift to another man, it belongs to him (the recipient) and to his descendants, and to those who inherit from him." (Using translation from Nasāʾī 3743)
أَنَّ رَسُولَ اللهِ ﷺ قَالَ «أَيُّمَا رَجُلٍ أَعْمَرَ رَجُلًا عُمْرَى لَهُ وَلِعَقِبِهِ فَهِيَ لَهُ يَرِثُهَا مِنْ عَقِبِهِ مَنْ وَرِثَهُ»