"The lifelong gift is permitted for its inhabitant" or:"is an inheritance for its inhabitant."
Jami` at-Tirmidhi Book 15, Hadith 29
← Previous Hadith "Whoever frees a portion" or he said: "a part of a slave, then he should finish paying his price if he can afford it. If he can not afford to pay reasonable price then he should be allowed to work to earn the amount that will free him without overburdening him." (Another chain) similar, and he said: "a part".

Jami` at-Tirmidhi Book 15, Hadith 28 Next Hadith → "Whichever man is given a lifelong gift for himself and his offspring, then it belongs to the one whom it was given, it does not return to the one who gave it, for he has given a gift which shall be included in the inheritance."

Jami` at-Tirmidhi Book 15, Hadith 30