It was narrated from Abdullah bin Amr that the Messenger of Allah (ﷺ) said:
"Whoever claims to belong to someone other than his father will not smell the fragrance of Paradise, even though its fragrance may be detected from a distance of five hundred years." (IT)
English reference (IT): Vol. 3, Book 20, Hadith 2611 (IT)
Arabic reference (IT): Book 20, Hadith 2709 (IT)