that the Messenger of Allah said: "Whoever has two wives and favors one of them over the other, he will come on the Day of Resurrection with one of his sides leaning."
قَالَ رَسُولُ اللَّهِ ﷺ مَنْ كَانَتْ لَهُ امْرَأَتَانِ يَمِيلُ مَعَ إِحْدَاهُمَا عَلَى الأُخْرَى جَاءَ يَوْمَ الْقِيَامَةِ وَأَحَدُ شِقَّيْهِ سَاقِطٌ