Rukn
Rukn (Arabic: ركن; pl. Arkan أركان; meaning “pillar”), in Islamic jurisprudence, refers to an obligatory act, with failure to perform it rendering the act invalid. If a rukn is neglected, the entire act must be repeated. It cannot be expiated by virtue of offering Fidyah.
The Arkan of Hajj are:
- To perform Wuquf at Arafat for even a moment, between midday on the 9th of Dhul Hijjah and Fajr on the 10th of Dhul Hijjah.
- To perform Tawaf al-Ziyarah.
