Surah An-Nisa — Ayah 50 (4:50)
ٱنظُرۡ كَيۡفَ يَفۡتَرُونَ عَلَى ٱللَّهِ ٱلۡكَذِبَۖ وَكَفَىٰ بِهِۦٓ إِثۡمٗا مُّبِينًا ٥٠
English translation (Saheeh International)
Look how they invent about Allāh untruth, and sufficient is that as a manifest sin.
Brief commentary
Look, O Messenger, how they create a lie against Allah in praising themselves. That is enough of a sin to demonstrate their misguidance.