Hadith no. 1260 (below) is a repeat. Read it here.
Narrated Abu Said Al-Khudri (radiallaahu `anhu):
The Prophet (sallallaahu `alayhi wasallam) said, “There is no Zakat on less than five Awsuq (of dates), or on less than five camels, or on less than five Awaq of silver.” (22 Yameni Riyals Faransa).
Narrated Abu Huraira (radiallaahu `anhu):
Dates used to be brought to Allah’s Apostle (sallallaahu `alayhi wasallam) immediately after being plucked. Different persons would bring their dates till a big heap collected (in front of the Prophet). Once Al-Hasan (radiallaahu `anhu) and Al-Husain (radiallaahu `anhu) were playing with these dates. One of them took a date and put it in his mouth. Allah’s Apostle (sallallaahu `alayhi wasallam) 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?”
The scholars are unanimously agreed that it is not permissible for the family of the Prophet (peace and blessings of Allaah be upon him) to eat from the obligatory zakaah. This consensus was narrated by more than one scholar.
See: Mawsoo’at al-Ijmaa’ by Sa’di Abu Jayb (2/517-518).
With regard to voluntary charity, most scholars are of the view that it is permissible for the family of Muhammad (peace and blessings of Allaah be upon him) to take from it. This is the well known view of the madhhabs of the four imams of fiqh (Abu Haneefah, Maalik, al-Shaafa’i and Ahmad, may Allaah have mercy on them all).
See: Radd al-Muhtaar (2/351), al-Taaj wa’l-Ikleel (3/223), Mughni al-Muhtaaj (4/195), Kashshaaf al-Qinaa’ (2/291-292).