130. Zakat-A mandatory duty for Muslims. 

The charity that is being talked of in this verse 9:60 of the Quran refers to Zakat. 

The Arabic word Sadaka is used in the original text, this word refers to voluntary charity made by people as well as the mandatory ones prescribed in the Quran. But here the word refers to the mandatory duty of Zakat, because the end of the verse says, ‘this is a duty stipulated by Allah’.

Voluntary charity can be done for all kinds of activities, but Zakat needs to be utilized for eight particular types of works.

For more details, please refer explanation points 204, 205, 206