The Messenger of Allah ﷺ commanded to estimate vines (for collecting zakat) as palm-trees are estimated. The zakat is to be paid in raisins as the zakat on palm trees is paid in dried dates.  

أَمَرَ رَسُولُ اللَّهِ ﷺ أَنْ يُخْرَصَ الْعِنَبُ كَمَا يُخْرَصُ النَّخْلُ وَتُؤْخَذُ زَكَاتُهُ زَبِيبًا كَمَا تُؤْخَذُ زَكَاةُ النَّخْلِ تَمْرًا  

The Above-mentioned tradition has also been narrated by Ibn Shihab through a different chain of narrators to the same effects.  

يَسْمَعْ مِنْ عَتَّابٍ شَيْئًا