It wasnarrated from 'Amr bin Shu'aib, from his father, that hisgrandfather said:
"Rabab bin Hudhaifah (bin Sa'eed) bin SahmmarriedUmm Wa'il bint Ma'mar Al-Jumahiyyah, and she bore himthree sons.Their mother died and her sons inherited her houses andthe Wala' ofher freed slaves. 'Amr bin 'As took them out toSham, and they died ofthe plague of 'Amwas. 'Amr inherited fromthem, and he was their'Asabah.* When 'Amr came back, Banu Ma'marcame to him and theyreferred their dispute with him concerning theWala' of their sisterto 'Umar. 'Umar said: 'I will judgebetween you according to what Iheard from the Messenger of Allah(ﷺ). I heard him say: "What theson or father acquires goes tohis. 'Asabah, no matter who they are.'"So he ruled in ourfavour and wrote a document to that effect, inwhich was thetestimony of 'Abdur-Rahman bin 'Awf, Zaid bin Thabit andsomeoneelse. Then when 'Abdul-Malik bin Marwan was appointed caliph,afreed slave of hers (Umm Wa'il's) died, leaving behind twothousandDinar. I heard that that ruling had been changed, so theyreferred thedispute to Hisham bin Isma'il. We referred the matterto 'Abdul-Malik,and brought him the document of 'Umar. He said:'I thought that thiswas a ruling concerning which there was nodoubt. I never thought thatthe people of Al-Madinah would reach sucha state that they woulddoubt this ruling. So he ruled in our favour,and it remained likethat afterwards."
English reference: Vol. 4, Book 23, Hadith 2732
Arabic reference: Book 23, Hadith 2837