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:19972 – Abū al-Ḥusayn b. al-Faḍl al-Qaṭṭān> ʿAbdullāh b. Jaʿfar > Yaʿqūb b. Sufyān > Abū Nuʿaym > Hishām > Yaḥyá > Abū Salamah > Zayd b. Thābit

[Machine] He used to say that giving food to the poor is sufficient as an expiation for breaking an oath by providing a handful of wheat for every needy person.  

البيهقي:١٩٩٧٢ – أَخْبَرَنَا أَبُو الْحُسَيْنِ بْنُ الْفَضْلِ الْقَطَّانُ بِبَغْدَادَ أنبأ عَبْدُ اللهِ بْنُ جَعْفَرٍ ثنا يَعْقُوبُ بْنُ سُفْيَانَ ثنا أَبُو نُعَيْمٍ ثنا هِشَامٌ عَنْ يَحْيَى عَنْ أَبِي سَلَمَةَ عَنْ زَيْدِ بْنِ ثَابِتٍ

أَنَّهُ كَانَ يَقُولُ يُجْزِئُ طَعَامُ الْمَسَاكِينِ فِي كَفَّارَةِ الْيَمِينِ مُدُّ حِنْطَةٍ لِكُلِّ مِسْكِينٍ