وَعَنْ أَبِي هُرَيْرَةَ عَنِ
النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «إِذَا كَانَتْ عِنْدَ الرَّجُلِ امْرَأَتَانِ فَلَمْ يَعْدِلْ بَيْنَهُمَا جَاءَ يَوْمَ الْقِيَامَةِ وَشِقُّهُ سَاقِطٌ»
The Prophet (sallallahu alayhi wa sallam) said:, “When a man has two wives and does not treat them equally he will come on the day of resurrection with a side hanging down.” Tirmidhi, Abu Dawud, Nasai.