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كتاب الزكاة
24  
Obligatory Charity Tax (Zakat)
(57)
Chapter: Zakat of dates during plucking season
(57)
باب أَخْذِ صَدَقَةِ التَّمْرِ عِنْدَ صِرَامِ النَّخْلِ
Sahih al-Bukhari 1485

Narrated Abu Huraira:

Dates used to be brought to Allah's Messenger (ﷺ) immediately after being plucked. Different persons would bring their dates till a big heap collected (in front of the Prophet). Once Al-Hasan and Al-Husain were playing with these dates. One of them took a date and put it in his mouth. Allah's Messenger (ﷺ) looked at him and took it out from his mouth and said, "Don't you know that Muhammad's offspring do not eat what is given in charity?"

حَدَّثَنَا عُمَرُ بْنُ مُحَمَّدِ بْنِ الْحَسَنِ الأَسَدِيُّ، حَدَّثَنَا أَبِي، حَدَّثَنَا إِبْرَاهِيمُ بْنُ طَهْمَانَ، عَنْ مُحَمَّدِ بْنِ زِيَادٍ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم يُؤْتَى بِالتَّمْرِ عِنْدَ صِرَامِ النَّخْلِ فَيَجِيءُ هَذَا بِتَمْرِهِ وَهَذَا مِنْ تَمْرِهِ حَتَّى يَصِيرَ عِنْدَهُ كَوْمًا مِنْ تَمْرٍ، فَجَعَلَ الْحَسَنُ وَالْحُسَيْنُ ـ رضى الله عنهما ـ يَلْعَبَانِ بِذَلِكَ التَّمْرِ، فَأَخَذَ أَحَدُهُمَا تَمْرَةً، فَجَعَلَهَا فِي فِيهِ، فَنَظَرَ إِلَيْهِ رَسُولُ اللَّهِ صلى الله عليه وسلم فَأَخْرَجَهَا مِنْ فِيهِ فَقَالَ ‏ "‏ أَمَا عَلِمْتَ أَنَّ آلَ مُحَمَّدٍ صلى الله عليه وسلم لاَ يَأْكُلُونَ الصَّدَقَةَ ‏"‏‏.‏
Reference : Sahih al-Bukhari 1485
In-book reference : Book 24, Hadith 85
USC-MSA web (English) reference : Vol. 2, Book 24, Hadith 562
  (deprecated numbering scheme)