Sunan Abi Dawud 1611
سنن أبي داود#1611Sahihحَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ، حَدَّثَنَا مَالِكٌ، - وَقَرَأَهُ عَلَى مَالِكٍ أَيْضًا - عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم فَرَضَ زَكَاةَ الْفِطْرِ - قَالَ فِيهِ فِيمَا قَرَأَهُ عَلَىَّ مَالِكٌ - زَكَاةُ الْفِطْرِ مِنْ رَمَضَانَ صَاعٌ مِنْ تَمْرٍ أَوْ صَاعٌ مِنْ شَعِيرٍ عَلَى كُلِّ حُرٍّ أَوْ عَبْدٍ ذَكَرٍ أَوْ أُنْثَى مِنَ الْمُسْلِمِينَ .
Ibn ‘Umar said :The Messenger of Allah(ﷺ) prescribed as zakat payable by slave and freeman, male and female, among the muslims on closing the fast of Ramadan one sa of dried dates or one sa’ of barley. (This tradition was read out byu ‘Abd Allah b. Maslamah to Malik)
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 9:56