Which of the following is a component of the 5 Pillars of Islam related to fasting?

The component of the 5 Pillars of Islam that pertains to fasting is indeed fasting during Ramadan. This practice, known as Sawm, involves Muslims refraining from food, drink, smoking, and intimate relations from dawn until sunset during the holy month of Ramadan. It serves multiple purposes, including spiritual reflection, increased devotion, and self-discipline, as well as fostering empathy for those who are less fortunate.

The other options describe different aspects of Islamic practice but do not relate to fasting. Hajj refers to the pilgrimage to Mecca, which is a significant religious journey that Muslims must undertake if they are able. Almsgiving, known as Zakat, involves giving to those in need and is a key principle of charity in Islam. Prayer five times a day, or Salah, is another essential requirement that emphasizes the importance of maintaining a close connection with God. Each of these practices forms part of the core beliefs and routines in a Muslim's life, but fasting during Ramadan specifically addresses the aspect of self-restraint and spiritual growth.