وَلِلدَّارَقُطْنِيِّ، عَنْ مُعَاذٍ
«فَأَمَّا اَلْقِثَّاءُ، وَالْبِطِّيخُ، وَالرُّمَّانُ، وَالْقَصَبُ، فَقَدْ عَفَا عَنْهُ رَسُولُ اَللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ -» وَإِسْنَادُهُ ضَعِيفٌ
Imam Ad-Daraqutni related on the authority of Muadh (RAA), ‘As for cucumbers, watermelons, pomegranates, and sugar-cane, the Messenger of Allah (sallallahu alayhi wa sallam) has exempted them from Zakah.’ It is transmitted with a weak chain of narrators.
Bulugh al-Maram 725, Book 4, The Book of Zakah, Hadith 19. 1 min read