عن سعد بن أبي وقاص رضي الله عنه أن النبي صلى الله عليه وسلم قال‏:‏ ‏"‏من ادعى إلى غير أبيه وهو يعلم أنه غير أبيه، فالجنة عليه حرام‏"‏ ‏(‏‏(‏متفق عليه‏)‏‏)‏‏.‏

Sa'd bin Abu Waqqas (May Allah be pleased with him) said

The Prophet (ﷺ) said, "He who (falsely) attributes his fatherhood to anyone besides his real father, knowing that he is not his father, will be forbidden to enter Jannah."[Al-Bukhari and Muslim].