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
bayhaqi:5795 – Abū Bakr b. al-Ḥārith > ʿAlī b. ʿUmar al-Ḥāfiẓ > ʿAbdullāh b. Muḥammad b. ʿAbd al-ʿAzīz > Dāwud b. Rushayd > Abū Ḥafṣ / al-Abbār > ʿAṭāʾ b. al-Sāʾib > Abū ʿAbd al-Raḥman al-Sulamī Arāh > ʿAlī

[Machine] "If the Imam feeds you, then feed him."  

البيهقي:٥٧٩٥ – وَأَخْبَرَنَا أَبُو بَكْرِ بْنُ الْحَارِثِ أنبأ عَلِيُّ بْنُ عُمَرَ الْحَافِظُ ثنا عَبْدُ اللهِ بْنُ مُحَمَّدِ بْنِ عَبْدِ الْعَزِيزِ ثنا دَاوُدُ بْنُ رُشَيْدٍ ثنا أَبُو حَفْصٍ يَعْنِي الْأَبَّارَ عَنْ عَطَاءِ بْنِ السَّائِبِ عَنْ أَبِي عَبْدِ الرَّحْمَنِ السُّلَمِيِّ أَرَاهُ عَنْ عَلِيٍّ ؓ قَالَ

إِذَا اسْتَطْعَمَكُمُ الْإِمَامُ فَأَطْعِمُوهُ  

See similar narrations below:

Collected by Bayhaqī, Suyūṭī
bayhaqi:5794 – Abū ʿAbdullāh al-Ḥāfiẓ > Abū al-ʿAbbās Muḥammad b. Yaʿqūb > Muḥammad b. Khālid > Aḥmad b. Khālid al-Wahbī > al-Ḥasan > Ibn ʿUmārah > ʿAṭāʾ b. al-Sāʾib > Abū ʿAbd al-Raḥman al-Sulamī > ʿAlī ؓ

[Machine] If the Imam feeds you, then feed him.  

البيهقي:٥٧٩٤ – وَأَخْبَرَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ ثنا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ يَعْقُوبَ ثنا مُحَمَّدُ بْنُ خَالِدٍ ثنا أَحْمَدُ بْنُ خَالِدٍ الْوَهْبِيُّ ثنا الْحَسَنُ هُوَ ابْنُ عُمَارَةَ عَنْ عَطَاءِ بْنِ السَّائِبِ عَنْ أَبِي عَبْدِ الرَّحْمَنِ السُّلَمِيِّ عَنْ عَلِيٍّ ؓ قَالَ

إِذَا اسْتَطْعَمَكُمُ الْإِمَامُ فَأَطْعِمُوهُ