«من ادعى إلى غير أبيه أو انتمى إلى غير مواليه فعليه لعنة الله المتتابعة إلى يوم القيامة»
The Prophet (peace and blessings be upon him) said:
"Whoever attributes himself to someone other than his father, or claims affiliation to someone other than his masters, upon him is the continuous curse of Allah until the Day of Resurrection."
Hadith Referenceصحیح الجامع الصغیر / حرف الميم / 5987