The Messenger of Allah ﷺ said, "The son of a people's sister is one of them."
حدثنا أبو بكر بن أبي شيبة حدثنا أبو أسامة عن عوف عن زياد بن مخراق عن أبي كنانة
قال رسول الله ﷺ ابن أخت القوم منهم
No references are available.
[Sahih] Ahmad narrated it (4/396) from Abu Usama Hammad bin Usama, through him, at length, but its chain is daif. It has corroborating narrations in Bukhari, no. 3528, and Muslim, no. 1059, and others.