Book Name:Barkaat e Zakat
Qaroon was the son of Yas-har, who was the uncle of Sayyiduna Musa عَـلَيْـهِ الـسَّـلَام. Allah Almighty blessed him with enormous wealth; 40 such people who were stronger than normal men used to lift the keys of his treasures. In verse 76 of Surah Al-Qasas, part 20, Allah Almighty has stated:
وَ اٰتَیْنٰهُ مِنَ الْكُنُوْزِ مَاۤ اِنَّ مَفَاتِحَهٗ لَتَنُوْٓاُ بِالْعُصْبَةِ اُولِی الْقُوَّةِۗ-
And We gave him so many treasures, that their keys were a heavy burden for a strong group (to carry)[1]
When Allah Almighty revealed the commandment of Zakat to the Bani Israail, Qaroon went to Sayyiduna Musa عَـلَيْـهِ الـسَّـلَام and agreed that he would pay one dinar for every one thousand dinars, one dirham for every one thousand dirhams, one goat for every one thousand goats, and similarly he would pay 1/1000th as Zakat out of his other belongings as well. When he calculated his wealth and possessions for Zakat, he found that he had to take out a huge amount of wealth. His nafs did not want him to give away so much wealth. So, he gathered the Bani Israail and said: “You have obeyed every order of Musa (عَـلَيْـهِ الـسَّـلَام). Now, he wants to take your wealth. What do you say?” They said: “You are our elder; you can order us to do whatever you want.” Qaroon then said: “Go to so-and-so woman of bad character, pay her money and give her the task of placing accusations upon Musa عَـلَيْـهِ الـسَّـلَام. When this happens, the Bani Israail will stop following him.”
Qaroon made the woman agree to slander and place false accusations upon Sayyiduna Musa عَـلَيْـهِ الـسَّـلَام by giving her one thousand dirhams and one thousand dinars.