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:4-2617b – Jaʿfar b. Muḥammad > ʿAli
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السيوطي:٤-٢٦١٧b –

"عَنْ جَعْفَرِ بْنِ مُحَمَّدٍ عَنْ عَلِىًّ: أَنَّ النَّبِىَّ ﷺ قَضَى بِشَهَادَةِ رَجُلٍ وَاحِدٍ مَعَ يَمينِ صَاحِبِ الْحَقِّ وَقَضَى بِهِ عَلِىٌّ بِالْعِرَاقِ".  

أبو عبد الله بن بابَوَيهِ فِى أَمَالِيهِ

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Collected by Bayhaqī
bayhaqi:20658 – Shabābah Kamā > Abū al-Ḥasan Muḥammad b. al-Ḥusayn al-ʿAlawī > Aḥmad b. Muḥammad b. al-Ḥasan al-Ḥāfiẓ > Aḥmad b. Muḥammad b. al-Ṣabbāḥ > Shabābah > ʿAbd al-ʿAzīz al-Mājishūn > Jaʿfar b. Muḥammad from his father from his grandfather > ʿAlī b. Abū Ṭālib

[Machine] "That the Prophet ﷺ ruled in favor of the testimony of one man alongside the truthful claimant, and Ali ﷺ ruled with it in Iraq as well."  

البيهقي:٢٠٦٥٨ – وَقِيلَ عَنْ شَبَابَةَ كَمَا أَخْبَرَنَا أَبُو الْحَسَنِ مُحَمَّدُ بْنُ الْحُسَيْنِ الْعَلَوِيُّ أنبأ أَحْمَدُ بْنُ مُحَمَّدِ بْنِ الْحَسَنِ الْحَافِظُ ثنا أَحْمَدُ بْنُ مُحَمَّدِ بْنِ الصَّبَّاحِ ثنا شَبَابَةُ ثنا عَبْدُ الْعَزِيزِ الْمَاجِشُونُ عَنْ جَعْفَرِ بْنِ مُحَمَّدٍ عَنْ أَبِيهِ عَنْ جَدِّهِ عَنْ عَلِيِّ بْنِ أَبِي طَالِبٍ ؓ

أَنَّ النَّبِيَّ ﷺ قَضَى بِشَهَادَةِ رَجُلٍ وَاحِدٍ مَعَ يَمِينِ صَاحِبِ الْحَقِّ وَقَضَى بِهِ عَلِيٌّ ؓ بِالْعِرَاقِ وَكَذَلِكَ  

رَوَاهُ حُسَيْنُ بْنُ زَيْدٍ عَنْ جَعْفَرِ بْنِ مُحَمَّدٍ