The Book on Zakat
كتاب الزكاة عن رسول الله صلى الله عليه وسلم
Chapter 35: What Has Been Related About Sadaqat al-Fitr
"The Messenger of Allah made Sadaqatul-Fitr of Ramadan an obligation - a Sa of dried dates or a Sa of barley - required upon every free person and slave, male and female among the Muslims."
Chapter 36: What Has Been Related About: It Is To Be Paid Before The Salat
the Messenger of Allah would order paying the Zakat before going to the Salat on the day of Fitr.
Chapter 37: What Has Been Related About Paying Zakat In Advance
"Al-Abbas asked the Messenger of Allah about paying his charity (Zakat) in advance before its time is due (by being in possession for a whole year), he permitted him to do that."
the Prophet said to Umar: "We have taken this year's Zakat from Al-Abbas in the previous year."
Chapter 38: What Has Been Related About The Prohibition Of Begging
the Messenger of Allah saying: "For one of you to go out early to gather firewood and carry it on his back so that he can give charity from it and be free of need from the people, is better for him than to ask a man who may give that to him or refuse. Indeed the upper hand (giving) is more virtuous than the lower hand (receiving), and begin with (those who are) your dependants."
the Messenger of Allah said: "Asking is a labor that toils on a man's face, except if a man asks for something from the Sultan (ruler), or he asks for something that he cannot do without."