When he was the governor of Al-Basrah, at the end of the month, Ibn 'Abbas said:

"Give Zakah of your fast." The people looked at one another, so he said: "Whoever is here from the people of Al-Madinah, get up and teach your brothers, for they do lnot know that this Zakah was enjoined by the Messenger of Allah upon every male and female, free and slave, a Sa' of barley or dates, or half a Sa' of wheat. "So they got up. (Da'if) Hisham contradicted him, he said: "From Muhammad bin Sirin."

أَخْبَرَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، قَالَ حَدَّثَنَا خَالِدٌ، - وَهُوَ ابْنُ الْحَارِثِ - قَالَ حَدَّثَنَا حُمَيْدٌ، عَنِ الْحَسَنِ، قَالَ قَالَ ابْنُ عَبَّاسٍ وَهُوَ أَمِيرُ الْبَصْرَةِ فِي آخِرِ الشَّهْرِ أَخْرِجُوا زَكَاةَ صَوْمِكُمْ . فَنَظَرَ النَّاسُ بَعْضُهُمْ إِلَى بَعْضٍ فَقَالَ مَنْ هَا هُنَا مِنْ أَهْلِ الْمَدِينَةِ قُومُوا فَعَلِّمُوا إِخْوَانَكُمْ فَإِنَّهُمْ لاَ يَعْلَمُونَ إِنَّ هَذِهِ الزَّكَاةَ فَرَضَهَا رَسُولُ اللَّهِ ﷺ عَلَى كُلِّ ذَكَرٍ وَأُنْثَى حُرٍّ وَمَمْلُوكٍ صَاعًا مِنْ شَعِيرٍ أَوْ تَمْرٍ أَوْ نِصْفَ صَاعٍ مِنْ قَمْحٍ . فَقَامُوا . خَالَفَهُ هِشَامٌ فَقَالَ عَنْ مُحَمَّدِ بْنِ سِيرِينَ .