Entering into a state of Iḥrām when visiting a holy place like Jerusalem .

This hadith is about the importance of entering ihram when visiting the holy city of Jerusalem. Ihram is a sacred state that Muslims enter into when performing Hajj or Umrah. It involves wearing two pieces of white cloth and abstaining from certain activities such as cutting hair or nails, hunting animals, and engaging in sexual activity. Abdullah ibn Umar was an important companion of Prophet Muhammad who demonstrated the importance of entering ihram when visiting a holy place like Jerusalem by doing so himself. This hadith teaches us to respect places that are considered sacred by Muslims and to take part in rituals such as entering ihram whenever we visit them.