Surah Nuh 71:27

إِنَّكَ إِن تَذَرْهُمْ يُضِلُّوا۟ عِبَادَكَ وَلَا يَلِدُوٓا۟ إِلَّا فَاجِرًا كَفَّارًا

Indeed, if You leave them, they will mislead Your servants and not beget except [every] wicked one and [confirmed] disbeliever.

Translation: Saheeh International

Tafsir

Assuredly if You leave them they will lead Your servants astray and will beget only disbelieving profligates fājir and kaffār derive respectively from yafjuru and yakfuru he said this on account of the mentioned revelation that had been given to him.

Excerpt from Tafsir al-Jalalayn, commentary on 71:27, via Quran.com. The reader has the full commentary and 9 more tafsirs.