Five Pillars of Islam
In Islam the title "Most Merciful" ("Al-Raheem") is one of the names of Allah and "Most Compassionate" ("Al-Rahman"), is the most common name occurring in the Quran. "Rahman" and "Rahim" both derive from the root "Rahmat", which refers to tenderness and benevolence. As a form of mercy, the giving of alms ("zakat") is the fourth of the Five Pillars of Islam and one of the requirements for the faithful.