question #1 Sahih al-Bukhari 1404, Book 24, Hadith 9 : What is the significance of paying Zakat in Islam according to the teachings of the Quran?

We went out with ‘Abdullah bin ‘Umar and a bedouin said (to ‘Abdullah), “Tell me about Allah’s saying: “And those who hoard up gold and silver (Al-Kanz – money, gold, silver etc., the Zakat of which has not been paid) and spend it not in the Way of Allah (V.9:34).” Ibn ‘Umar said, “Whoever hoarded them and did not pay the Zakat thereof, then woe to him. But these holy Verses were revealed before the Verses of Zakat. So when the Verses of Zakat were revealed, Allah made Zakat a purifier of the property.”