Read all Ahadith in the book on zakat by jami al tirmizi

Abu Dharr narrated: I came to the Messenger of Allah while he was sitting in the shade of the Ka'bah. He said: He saw me approaching and he said: 'They are lost on the Day of Judgment! By the Lord of the Ka'bah!' He said: I said t myself: Woe is me! Perhaps something has been revealed about me!' He said: So I said: 'Who are they, and may my father and mother be ransomed for you.' So the Messenger of Allah said: 'They are those who have much, except for who says like this, and this, and this and motioned with his hand to his front, and t his right, and to his left.' Then he said: 'By the One in Whose Hand is my soul! No man will die, leaving a camel or a cow that he did not pay Zakat on, except that it will come on the Day of Judgment larger and fatter than it was, they will tread him under their hooves and butt him with their horns, all of them; such that when the last of them has had a turn, the first returns to him, until he is judged before the people.'

Abu Hurairah narrated : that the Prophet said: When you pay the Zakat you have fulfilled what is required of you.

Anas narrated: We used to hope that an intelligent Bedouin would show up to question the Prophet while we were with him. So one while we were with him, a Bedouin came, kneeling in front of the Prophet, and he said: 'O Muhammad, your messenger came to us and told us that you say that Allah sent you.' So the Prophet say: 'Yes.' He said, 'So, (swear) by the One who raised the heaves, and spread out the earth, and erected the mountains; has Allah sent you?' The Prophet said, 'Yes.' He said: 'Your messenger told us that you say that there are five prayers required from us in a day and a night.' The Prophet said, 'Yes.' He said, 'By the One Who sent you, has Allah ordered that you you?' He said, 'Yes.' He said, 'Your messenger told us that you say that we are required to fast for a month out of the year.' He said, 'He told the truth.' He said, 'By the One Who sent you, has Allah ordered that you?' The Prophet said, 'Yes.' He said, 'Your messenger told us that Zakat is required from our wealth.' The Prophet said, 'He told the truth.' He said, 'By the One Who sent you, has Allah ordered you that?' The Prophet said, 'Yes.' He said, 'Your messenger told us that you say that we are required to perform Hajj to Allah's House if able to undertake the journey.' The Prophet said, 'Yes.' He said, 'By the One Who sent you, has Allah Commanded you that?' (The Prophet said:) 'Yes.' So he said: 'By the One Who sent you with the Truth, I will not leave any of them, nor surpass them.' Then he got up quickly (leaving). The Prophet said: 'If the Bedouin told the truth, then he will enter Paradise.'

Ali narrated that : the Messenger of Allah said: I have exempted charity on horses and slaves. So bring charity for silver, one Dirham for every forty Dirham. There is nothing for me (to collect) on one hundred and ninety Dirham, so when it reaches two hundred, then five Dirham of it (are due).

Az-Zuhri narrated from Salim from his father: The Messenger of Allah had a letter written about charity, but he had not dispatched it to his governors until he died; he kept it with him along with his sword. When he died, Abu Bakr implemented it until he died, as did Umar until he died. In it was: 'A sheep (is due) on five camels, two sheeps on ten, three sheeps on fifteen, four sheeps for twenty, a Bint Makhad on twenty-five to thirty-five. When it is more than that, then a Bint Labun, (is due, till the number of the camels reaches) forty-five. When it is more than that, then a Hiqqah until sixty. When it is more than that, then a Jadhah until seventy-five. When it is more than one hundred and twenty, then a Hiqqah on every fifty, and a Bint Labun on every forty. For sheep; one sheep (is due) for every forty sheeps until one hundred and twenty. When it is more than that, then two sheeps until two hundred. When it is more than that, then three sheeps until three hundred sheep. When it is more than three hundred sheep, then a sheep on every hundred sheep. Then there is nothing until it reaches four hundred. There is no combining the (property of) individuals nor separating the collective (property) fearing Sadaqah. And fr whatever is mixed together that two own, then they are to refer to the total. Neither an old or defective (animal) may be taken for charity.

Abdullah bin Mas'ud narrated that : the Prophet said: A Tabi or a Tabi'ah (is due) on thirty cows, and a Musinnah (is due) on every forty.

Mu'adh bin Jabal narrated: The Prophet sent me to Yemen and ordered me to collect a Tabi or a Tabi'ah on every thirty cows, a Musinnah on every forty, a Dinar for every Halim, or its equivalent of Ma'afir. Abu Eisa said: This Hadith is Hasan. Some of them reported this Hadith from Sufyan, from Al-A'mash, from Abu Wa'il, from Masruq: The Prophet sent Mu'adh to Yemen and ordered him to take... and this is more authentic

Muhammad bin Bash-shar (Al-Abdi) narrated to us, : Muhammad bin Ja'far narrated to us, from Shu'bah, from Amr bin Murrah who said: I asked Abu Ubaidah bin Abdullah: 'Did you remember anything from Abdullah?' He said, 'No'

Ibn Abbas narrated that : the Messenger of Allah sent Mu'adh to Yemen and said to him: You are going to a people from the People of the Book, so invite them to testify that none has the right to be worshipped but Allah, and that I am the Messenger of Allah. If they comply with that, then inform them that Allah has made five prayers obligatory upon them in a day and a night. If they comply with that, then inform then that Allah has ordained a charity upon their wealth, which is to be taken from the rich among them and given to the poor among them. If they comply with that, then beware of their most precious wealth, and protect yourself from the supplication of the oppressed, for there is no barrier between it and Allah.

Abu Sa'eed Al-Khudri narrated that : the Prophet said: There is no charity due on less than five camels, and there is no charity due on what is less than five Uqiyah (of silver), and there is no charity due on what is less than five Wasaq.