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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
ibnmajah:2112 – al-ʿAbbās b. Yazīd > Ziyād b. ʿAbdullāh al-Bakkāʾī

"The Messenger of Allah ﷺ offered expiation of a Sa' of dates, and he enjoined the people to do likewise. Whoever does not have that (must give) half a Sa' of wheat."  

ابن ماجة:٢١١٢ – حَدَّثَنَا الْعَبَّاسُ بْنُ يَزِيدَ حَدَّثَنَا زِيَادُ بْنُ عَبْدِ اللَّهِ الْبَكَّائِيُّ حَدَّثَنَا عُمَرُ بْنُ عَبْدِ اللَّهِ بْنِ يَعْلَى الثَّقَفِيُّ عَنِ الْمِنْهَالِ بْنِ عَمْرٍو عَنْ سَعِيدِ بْنِ جُبَيْرٍ عَنِ ابْنِ عَبَّاسٍ قَالَ

كَفَّرَ رَسُولُ اللَّهِ ﷺ بِصَاعٍ مِنْ تَمْرٍ وَأَمَرَ النَّاسَ بِذَلِكَ فَمَنْ لَمْ يَجِدْ فَنِصْفُ صَاعٍ مِنْ بُرٍّ  

See similar narrations below:

Collected by Ṭabarānī
tabarani:12270 – Zakariyyā b. Yaḥyá al-Sājī > Muḥammad b. Mūsá al-Ḥarashī > Ziyād b. ʿAbdullāh al-Bakkāʾī

[Machine] The Messenger of Allah ﷺ disbelieved with a measure of dates and ordered the people to do so, so whoever could not find it should do it with half a measure.  

الطبراني:١٢٢٧٠ – حَدَّثَنَا زَكَرِيَّا بْنُ يَحْيَى السَّاجِيُّ ثنا مُحَمَّدُ بْنُ مُوسَى الْحَرَشِيُّ ثنا زِيَادُ بْنُ عَبْدِ اللهِ الْبَكَّائِيُّ ثنا عُمَرُ بْنُ عَبْدِ اللهِ بْنِ يَعْلَى الثَّقَفِيُّ ثنا الْمِنْهَالُ بْنُ عَمْرٍو عَنْ سَعِيدِ بْنِ جُبَيْرٍ عَنِ ابْنِ عَبَّاسٍ قَالَ

«كَفَّرَ رَسُولُ اللهِ ﷺ بِصَاعٍ مِنْ تَمْرٍ وَأَمَرَ النَّاسَ أَنْ يَفْعَلُوهُ فَمَنْ لَمْ يَجِدْ فَبِنِصْفِ صَاعٍ»