مسند اسحاق بن راهويه
Musnad Ishaq Bin Rahwiya
كتاب الهبة و فضلها
Book of Gifts and Their Virtue
Description of ‘Umra (gift for a lifetime)
Hadith Number: 488
قال قتادة: قال الزهري: إنما العمرى ان يقول هي له ولعقبه من بعده فللذي يجعل شرطه.
Imam Zuhri, may Allah have mercy on him, said: 'Umra is that a person says: "This is for him, and after him for his offspring." So it is for the one for whom he sets the condition.'
تخریج الحدیث: «السابق»