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ahmad:4486 – Ismāʿīl > Ayyūb > Nāfiʿ > Ibn ʿUmar

[Machine] The Messenger of Allahﷺ prescribed giving Sadaqat al-Fitr (charity of Ramadan) on males, females, free people, and slaves, which is one Sa'a (measurement) of dates or one Sa'a of barley. People then started giving it in half a Sa'a of wheat. Ayyub said, and Nafi said, "Ibn Umar used to give dates except for one year when dates were scarce, so he gave barley."  

أحمد:٤٤٨٦ – حَدَّثَنَا إِسْمَاعِيلُ أَخْبَرَنَا أَيُّوبُ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ قَالَ

فَرَضَ رَسُولُ اللهِ ﷺ صَدَقَةَ رَمَضَانَ عَلَى الذَّكَرِ وَالْأُنْثَى وَالْحُرِّ وَالْمَمْلُوكِ صَاعَ تَمْرٍ أَوْ صَاعَ شَعِيرٍ قَالَ فَعَدَلَ النَّاسُ بِهِ بَعْدُ نِصْفَ صَاعِ بُرٍّ قَالَ أَيُّوبُ وَقَالَ نَافِعٌ كَانَابْنُ عُمَرَ يُعْطِي التَّمْرَ إِلَّا عَامًا وَاحِدًا أَعْوَزَ التَّمْرُ فَأَعْطَى الشَّعِيرَ  

See similar narrations below:

Collected by Muslim, Nasāʾī, Tirmidhī, Nasāʾī's Kubrá
muslim:984c – Yaḥyá b. Yaḥyá > Yazīd b. Zurayʿ > Ayyūb > Nāfiʿ > Ibn ʿUmar

Ibn 'Umar said that the Messenger of Allah ﷺ prescribed the Sadaqa of Ramadan (Sadaqat-al-Fitr) one sa' of dates or one sa' of barley for every free man or a slave, male or female, and then the people equalised (one sa' of dates or barley) with half a sa' of wheat.  

مسلم:٩٨٤c – وَحَدَّثَنَا يَحْيَى بْنُ يَحْيَى أَخْبَرَنَا يَزِيدُ بْنُ زُرَيْعٍ عَنْ أَيُّوبَ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ قَالَ

فَرَضَ النَّبِيُّ ﷺ صَدَقَةَ رَمَضَانَ عَلَى الْحُرِّ وَالْعَبْدِ وَالذَّكَرِ وَالأُنْثَى صَاعًا مِنْ تَمْرٍ أَوْ صَاعًا مِنْ شَعِيرٍ قَالَ فَعَدَلَ النَّاسُ بِهِ نِصْفَ صَاعٍ مِنْ بُرٍّ  

nasai:2501 – Qutaybah > Ḥammād > Ayyūb > Nāfiʿ > Ibn ʿUmar

"The Messenger of Allah enjoined Sadaqatul Fitr upon male and female, free and slave; a Sa of dates or a Sa of barley." He said: "The people considered that equivalent to half a Sa of wheat."  

النسائي:٢٥٠١ – أَخْبَرَنَا قُتَيْبَةُ قَالَ حَدَّثَنَا حَمَّادٌ عَنْ أَيُّوبَ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ قَالَ

فَرَضَ رَسُولُ اللَّهِ ﷺ صَدَقَةَ الْفِطْرِ عَلَى الذَّكَرِ وَالأُنْثَى وَالْحُرِّ وَالْمَمْلُوكِ صَاعًا مِنْ تَمْرٍ أَوْ صَاعًا مِنْ شَعِيرٍ قَالَ فَعَدَلَ النَّاسُ إِلَى نِصْفِ صَاعٍ مِنْ بُرٍّ  

tirmidhi:675 – Qutaybah > Ḥammād b. Zayd > Ayyūb > Nāfiʿ > Ibn ʿUmar

"The Messenger of Allah made Sadaqatul-Fitr an obligation upon the male and female, the free and the bondsmen, as a Sa of dried dates or a Sa of barley." He said: "So the people equated that to half a Sa of wheat."  

الترمذي:٦٧٥ – حَدَّثَنَا قُتَيْبَةُ حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ عَنْ أَيُّوبَ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ قَالَ

فَرَضَ رَسُولُ اللَّهِ ﷺ صَدَقَةَ الْفِطْرِ عَلَى الذَّكَرِ وَالأُنْثَى وَالْحُرِّ وَالْمَمْلُوكِ صَاعًا مِنْ تَمْرٍ أَوْ صَاعًا مِنْ شَعِيرٍ قَالَ فَعَدَلَ النَّاسُ إِلَى نِصْفِ صَاعٍ مِنْ بُرٍّ  

قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ وَفِي الْبَابِ عَنْ أَبِي سَعِيدٍ وَابْنِ عَبَّاسٍ وَجَدِّ الْحَارِثِ بْنِ عَبْدِ الرَّحْمَنِ بْنِ أَبِي ذُبَابٍ وَثَعْلَبَةَ بْنِ أَبِي صُعَيْرٍ وَعَبْدِ اللَّهِ بْنِ عَمْرٍو
nasai-kubra:2292 – Qutaybah b. Saʿīd > Ḥammād > Ayyūb > Nāfiʿ > Ibn ʿUmar

"The Messenger of Allah enjoined Sadaqatul Fitr upon male and female, free and slave; a Sa of dates or a Sa of barley." He said: "The people considered that equivalent to half a Sa of wheat." (Using translation from Nasāʾī 2501)  

الكبرى للنسائي:٢٢٩٢ – أَخْبَرَنَا قُتَيْبَةُ بْنُ سَعِيدٍ قَالَ حَدَّثَنَا حَمَّادٌ عَنْ أَيُّوبَ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ قَالَ

«فَرَضَ رَسُولُ اللهِ ﷺ صَدَقَةَ الْفِطْرِ عَلَى الذَّكَرِ وَالْأُنْثَى وَالْحُرِّ وَالْمَمْلُوكِ صَاعًا مِنْ تَمْرٍ أَوْ صَاعًا مِنْ شَعِيرٍ» قَالَ فَعَدَلَ النَّاسُ إِلَى نِصْفِ صَاعٍ بُرٍّ