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.
bayhaqi:20658Shabābah 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:٢٠٦٥٨وَقِيلَ 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

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Collected by Suyūṭī
suyuti:4-2617bJaʿfar 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