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:5063a –

“Allah is with the judge so long as he is not unjust, but if he rules unjustly, He entrusts him to himself.” (Using translation from Ibn Mājah 2312)   

السيوطي:٥٠٦٣a –

"إِنَّ الله مع القاضي ما لم يَجُرْ عمدًا فإِذا جَارَ وَكَلَه إِلى نفسه".  

[هـ] ابن ماجة [حب] ابن حبّان [طب] الطبرانى في الكبير [ق] البيهقى في السنن عن عبد الله بن أَبي أَوفى

See similar narrations below:

Collected by Ibn Mājah, Suyūṭī
ibnmajah:2312 – Aḥmad b. Sinān > Muḥammad b. Bilāl > ʿImrān al-Qaṭṭān > Ḥusayn / Ibn ʿImrān > Abū Isḥāq al-Shaybānī > ʿAbdullāh b. Abū Awfá

“Allah is with the judge so long as he is not unjust, but if he rules unjustly, He entrusts him to himself.”  

ابن ماجة:٢٣١٢ – حَدَّثَنَا أَحْمَدُ بْنُ سِنَانٍ حَدَّثَنَا مُحَمَّدُ بْنُ بِلاَلٍ عَنْ عِمْرَانَ الْقَطَّانِ عَنْ حُسَيْنٍ يَعْنِي ابْنَ عِمْرَانَ عَنْ أَبِي إِسْحَاقَ الشَّيْبَانِيِّ عَنْ عَبْدِ اللَّهِ بْنِ أَبِي أَوْفَى قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ إِنَّ اللَّهَ مَعَ الْقَاضِي مَا لَمْ يَجُرْ فَإِذَا جَارَ وَكَلَهُ إِلَى نَفْسِهِ  

suyuti:5064a –
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السيوطي:٥٠٦٤a –

"إِن الله مع القاضي ما لم يَجُرْ فإِذا جارَ تبرَّأ الله منه، وأَلزَمه الشيطانَ".  

[ك] الحاكم في المستدرك [ق] البيهقى في السنن عن ابن أَبي أَوْفى