It wasnarrated that Ma'qil bin Yasar Al-Muzani said:
"I heard theProphet (ﷺ) when a case was brought to him which involved the shareof a grandfather. He gave him one third, or one sixth." (RU)
English reference (RU): Vol. 4, Book 23, Hadith 2722 (RU)
Arabic reference (RU): Book 23, Hadith 2826 (RU)