linguistic:translation, structural:summarization
Acts of worship

There are five acts of worship that are considered duties – the Shahada (declaration of faith), the five daily prayers, Zakat (alms-giving), fasting during Ramadan and the Hajj pilgrimage – collectively known as "The Pillars of Islam" (Arkān al-Islām). In addition, Muslims also perform other optional supererogatory acts that are encouraged but not considered to be duties.