Hac is the fifth and final pillar of Islam, farz once in a lifetime for every physically and financially able Muslim. The five pillars are: Shahada (faith declaration), Salah (namaz), Zakat (charity), Sawm (fasting), and Hac (hac ibadeti). Hac integrates elements of all other pillars and is considered the culminating act of Islamic worship.
The five pillars of Islam (Arkan al-Islam) constitute the foundational acts of worship that define Muslim practice. As narrated in the hadith of Jibril (Gabriel), Hz. Peygamber Muhammad (sallallahu aleyhi ve sellem) identified them as: the testimony of faith (Shahada — La ilaha illa Allah, Muhammad Rasul Allah), establishing namaz (Salah — five daily namazs), paying farz charity (Zakat — 2.5% of qualifying wealth annually), fasting during Ramadan (Sawm — abstaining from food, drink, and other pleasures from dawn to sunset), and performing the hac ibadeti to Mekke (Hac — once in a lifetime for those able). These five acts progress from the internal (belief) to the increasingly external and demanding.
Hac uniquely incorporates elements of every other pillar. It requires the Shahada as its foundation — only Muslims perform Hac. It involves extensive Salah — namazs at every stage, including the namaz behind Maqam Ibrahim, the combined namazs at Arafah and Muzdelife, and the daily namazs throughout the Hac days. It embodies Zakat's spirit of generosity — the sacrifice distributes meat to the poor, and the communal living conditions cultivate charitable attitudes. It mirrors Sawm's self-denial — the Ihram restrictions limit physical comforts, the journey demands physical endurance, and the intense worship requires sustained spiritual effort. In this way, Hac serves as the capstone of the Islamic worship framework, testing and demonstrating the haci's commitment to all dimensions of faith simultaneously.
The ordering of the pillars is not arbitrary. The Shahada establishes belief. Salah establishes the daily rhythm of worship. Zakat extends worship to the community through financial sacrifice. Sawm trains the soul through physical and spiritual discipline over an extended period. Hac demands all of these simultaneously while adding the ultimate dimension: physical journey, complete submission to discomfort, and the erasure of all worldly distinctions. It is the culminating test — and the culminating reward. Hz. Peygamber said, 'An accepted Hac has no reward except Paradise' (Bukhari). No other single act of worship carries this guarantee, which is why Hac occupies its unique position as the fifth and final pillar.