Qur'an 39:29

ضَرَبَ ٱللَّهُ مَثَلًا رَّجُلًا فِيهِ شُرَكَآءُ مُتَشَـٰكِسُونَ وَرَجُلًا سَلَمًا لِّرَجُلٍ هَلْ يَسْتَوِيَانِ مَثَلًا ۚ ٱلْحَمْدُ لِلَّهِ ۚ بَلْ أَكْثَرُهُمْ لَا يَعْلَمُونَ

Allah coineth a similitude: A man in relation to whom are several part-owners, quarrelling, and a man belonging wholly to one man. Are the two equal in similitude? Praise be to Allah! But most of them know not.