It was narrated from Abu Hurairah that the Messenger of Allah (ﷺ) said:
"There is no lifelong grant. Whoever is given something as a lifelong grant, it is his.' " (JA)
English reference (JA): Vol. 3, Book 14, Hadith 2379 (JA)
Arabic reference (JA): Book 14, Hadith 2469 (JA)