Zakat means
to purify
Zakat made obligatory in
2 A.H
Number of heads for distribution of Zakat are
8
Number of heads injunction given in
Surah Tauba
Zakat mentioned along salat
22 times
Nisab for gold
7-1/2 tola
Nisab for silver
52-1/2 tola
Nisab for Camels
5
Nisab for goats
40
Nisab for Cows/Buffaloes
3
Zakat on irrigated produce is called
Ushr
Ushr means
1/10th
Ushr on artificially irrigate land
1/20th
Khums means
1/5th
Number of times word Zakat appeared in Quran
32
Kharaj is
the spoils of war
Fay is
income from town lands
Zakat on produce of mines is
Khums (1/5th)