An-Nisaa • BN-TAFSEER-IBN-E-KASEER
﴿ أَفَلَا يَتَدَبَّرُونَ ٱلْقُرْءَانَ ۚ وَلَوْ كَانَ مِنْ عِندِ غَيْرِ ٱللَّهِ لَوَجَدُوا۟ فِيهِ ٱخْتِلَٰفًۭا كَثِيرًۭا ﴾
“Will they not, then, try to understand this Qur’an? Had it issued from any but God, they would surely have found in it many an inner contradiction!”
Please check ayah 4:83 for complete tafsir.