The Messenger of Allah ﷺ said, "Allah and His Messenger are the guardians of one who has no guardian, and the maternal uncle is the heir of one who has no heir."
حدثنا بندار حدثنا أبو أحمد الزبيري حدثنا سفيان عن عبد الرحمن بن الحارث عن حكيم بن حكيم بن عباد بن حنيف عن أبي أمامة بن سهل بن حنيف قال كتب عمر بن الخطاب إلى
أن رسول الله ﷺ قال الله ورسوله مولى من لا مولى له والخال وارث من لا وارث له
[Hasan] Ibn Majah also recorded it in the Chapters on Inheritance Shares, the section on distant relatives, no. 2737, from the hadith of Sufyan Thawri with the same wording. Ibn Jarud graded it sahih, no. 964, as did Ibn Hibban, no. 1227. It has a hasan corroborating narration with Ibn Hibban, no. 1226, and others. See also Nail al-Maqsud, no. 2899, 2900, and others.On this subject there is also a narration from Ayesha [to come at 2104] and from Miqdam bin Mad Yakrib [Abu Dawud, no. 2899].