What are the rightly chosen caliphs?

The rightly guided caliphs, or "Rashidun," refer to the first four leaders of the Islamic community after the death of the Prophet Muhammad. They are Abu Bakr, Umar ibn al-Khattab, Uthman ibn Affan, and Ali ibn Abi Talib. These caliphs are revered for their leadership, commitment to Islamic principles, and efforts to expand and unify the Muslim Ummah during the early years of Islam. Their period is often viewed as a model of just and effective governance in the Islamic tradition.