Explanation

• Zakat was made compulsory in 2. A.H. 7-1/2 is the nasab of gold and 52-half tolas for silver.
• Injunction of utilization of zakat is in Surah-al Tauba.
• Zakāt or "alms giving", one of the five Pillars of Islam, is the giving 2.5% of one's possessions  to charity, normally to the terrible and needy.