Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
suyuti:2536a –

The Messenger of Allah said: "When a man has two wives and he is not just between them, he will come on the Day of Judgment with one side drooping." (Using translation from Tirmidhī 1141)   

السيوطي:٢٥٣٦a –

"إذا كانت عندَ الرّجُلِ امْرأتان فلمْ يعْدِل بينْهما جاءَ يوْمَ القيامةِ وَشِقهُ ساقطٌ" .  

[ت] الترمذي [ك] الحاكم في المستدرك عن أبي هريرة

See similar narrations below:

Collected by Tirmidhī, Ḥākim
tirmidhi:1141 – Muḥammad b. Bashhār > ʿAbd al-Raḥman b. Mahdī > Hammām > Qatādah > al-Naḍr b. Anas > Bashīr b. Nahīk > Abū Hurayrah

The Messenger of Allah said: "When a man has two wives and he is not just between them, he will come on the Day of Judgment with one side drooping."  

الترمذي:١١٤١ – حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ حَدَّثَنَا هَمَّامٌ عَنْ قَتَادَةَ عَنِ النَّضْرِ بْنِ أَنَسٍ عَنْ بَشِيرِ بْنِ نَهِيكٍ عَنْ أَبِي هُرَيْرَةَ

عَنِ النَّبِيِّ ﷺ قَالَ إِذَا كَانَ عِنْدَ الرَّجُلِ امْرَأَتَانِ فَلَمْ يَعْدِلْ بَيْنَهُمَا جَاءَ يَوْمَ الْقِيَامَةِ وَشِقُّهُ سَاقِطٌ  

قَالَ أَبُو عِيسَى وَإِنَّمَا أَسْنَدَ هَذَا الْحَدِيثَ هَمَّامُ بْنُ يَحْيَى عَنْ قَتَادَةَ وَرَوَاهُ هِشَامٌ الدَّسْتَوَائِيُّ عَنْ قَتَادَةَ قَالَ كَانَ يُقَالُ وَلاَ نَعْرِفُ هَذَا الْحَدِيثَ مَرْفُوعًا إِلاَّ مِنْ حَدِيثِ هَمَّامٍ وَهَمَّامٌ ثِقَةٌ حَافِظٌ
hakim:2759 – Abū Bakr Aḥmad b. Salmān al-Faqīh > Jaʿfar b. Abū ʿUthmān al-Ṭayālisī > ʿAffān And Muḥammad b. Sinān > Hammām > Qatādah > al-Naḍr b. Anas > Bashīr b. Nahīk > Abū Hurayrah

The Messenger of Allah said: "When a man has two wives and he is not just between them, he will come on the Day of Judgment with one side drooping." (Using translation from Tirmidhī 1141)  

الحاكم:٢٧٥٩ – أَخْبَرَنَا أَبُو بَكْرٍ أَحْمَدُ بْنُ سَلْمَانَ الْفَقِيهُ ثنا جَعْفَرُ بْنُ أَبِي عُثْمَانَ الطَّيَالِسِيُّ ثنا عَفَّانُ وَمُحَمَّدُ بْنُ سِنَانٍ قَالَا ثنا هَمَّامٌ عَنْ قَتَادَةَ عَنِ النَّضْرِ بْنِ أَنَسٍ عَنْ بَشِيرِ بْنِ نَهِيكٍ عَنْ أَبِي هُرَيْرَةَ

عَنِ النَّبِيِّ ﷺ قَالَ «إِذَا كَانَ عِنْدَ الرَّجُلِ امْرَأَتَانِ فَلَمْ يَعْدِلْ بَيْنَهُمَا جَاءَ يَوْمَ الْقِيَامَةِ وَشِقُّهُ سَاقِطٌ»  

هَذَا حَدِيثٌ صَحِيحٌ عَلَى شَرْطِ الشَّيْخَيْنِ وَلَمْ يُخَرِّجَاهُ على شرط البخاري ومسلم