There is No Zakat due on less than five Wasq
وَحَدَّثَنِي مُحَمَّدُ بْنُ رَافِعٍ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا الثَّوْرِيُّ، وَمَعْمَرٌ، عَنْ إِسْمَاعِيلَ، بْنِ أُمَيَّةَ بِهَذَا الإِسْنَادِ . مِثْلَ حَدِيثِ ابْنِ مَهْدِيٍّ وَيَحْيَى بْنِ آدَمَ غَيْرَ أَنَّهُ قَالَ - بَدَلَ التَّمْرِ - ثَمَرٍ .
A hadith like this has been narrated by Isma'il b. Umayya with the same chain of transmitters, but instead of the word dates, fruit has been used.