A Few Quick Questions About Zakat
2.5% zakat on assets is in the sunnah that has reached us with ijma and tawatur. People mistakenly take the source to be hadith, just like they do with salat and other worship rituals. 20% (khums) and 10% (ushr) on agricultural production also comes to us from the sunnah that has reached us with ijma and tawatur. Since at the time of Prophet SAW, agriculture was the only means of production, Ghamidi sahab has made an ijtihad and has applied it to all other forms of production in the modern day, for example, salaries, wages, etc. The differences of opinion are in application, however I’m not aware of anyone who has presented different rates of zakat. These rates are the same even in sharias of previous nations as is evident from the Bible.