Mishkat al-Masabih 6 Zakat كتاب الزكاة 36

وَعَنِ ابْنِ عُمَرَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسلم فِي الْعَمَل: «فِي كُلِّ عَشْرَةِ أَزُقٍّ زِقٌّ» . رَوَاهُ التِّرْمِذِيُّ وَقَالَ: فِي إِسْنَادِهِ مَقَالٌ وَلَا يَصِحُّ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فِي هَذَا الْبَاب كثير شَيْء

Ibn ‘Umar reported God’s messenger as saying regarding honey, “A skin is payable on every ten.” Tirmidhi transmitted it, saying its isnad is criticised and that little on this subject is soundly reported from the Prophet.