This category refers to people who can’t provide for themselves, who can’t cover their needs and the needs of their dependents in term of food, drink, clothes and dwelling.
They either do not earn anything or their earnings cover less than half of their annual expenses.
They are given what suffices them to cover their needs based on their annual expenses.
Allah says in the Qur'an: "(Charity is) for the fuqara, who in Allah’s cause, are restricted (from travel) and cannot move about in the land (for trade or work). The one who knows them not thinks they are rich because of their modesty. You may know them by their mark, they do not beg of people at all..." (surat al baqarah, verse 273)