Narrated Abu Huraira :

Dates used to be brought to Allah's Apostle 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 Apostle 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 ﷺ 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 ﷺ فَأَخْرَجَهَا مِنْ فِيهِ فَقَالَ
" أَمَا عَلِمْتَ أَنَّ آلَ مُحَمَّدٍ ﷺ لاَ يَأْكُلُونَ الصَّدَقَةَ ".