Masjid al-Nabawi, the "Prophet's Mosque" in Medina, was established by the Prophet Muhammad (PBUH) himself after the Hijrah. It houses the "Rawdah ash-Sharifah" and the tomb of the Prophet (PBUH), marked by the famous Green Dome. As the second holiest site in Islam, it was the administrative and spiritual centre of the first Islamic state. To this day, it remains a place of immense peace and a primary destination for pilgrims seeking to pay their respects to the Messenger of Allah. Masjid al-Nabawi is the second holiest mosque in Islam, after Masjid al-Haram in Mecca. It was built by the Prophet Muhammad (peace be upon him) in 622 CE, immediately after his migration to Medina. The original mosque was a simple structure made of palm trunks and mud bricks, with a shaded area for prayer and rooms for the Prophet's family. Over the centuries, the mosque has been expanded and renovated numerous times, from the caliphs to the Umayyads, Abbasids, Ottomans, and modern Saudi expansions. Today, it covers over 400,000 square meters and can accommodate over a million worshippers. The mosque contains the Rawdah (Garden), an area between the Prophet's pulpit (minbar) and his burial chamber, which the Prophet described as "a garden from the gardens of Paradise" (Bukhari, Muslim). This area is covered with green carpets to distinguish it from the rest of the mosque, and millions of pilgrims strive to pray there. The Green Dome, constructed in the 13th century and later renovated by the Ottomans, marks the location of the Prophet's tomb, as well as the graves of Abu Bakr and Umar (RA). The dome has become an iconic symbol of Medina. The Prophet's Mosque was the center of the early Islamic state,it served as a place of worship, a school, a court, a community center, and a gathering place for consultation. The Prophet delivered sermons from its minbar, received delegations, and addressed community issues from this space. For pilgrims visiting Medina, praying in the Prophet's Mosque is a deeply spiritual experience. It is recommended to visit the Prophet's grave, greet him with "Assalamu alayka ayyuhan nabiyyu" (Peace be upon you, O Prophet), and pray in the Rawdah. However, Muslims are careful not to direct worship to the Prophet; the visit is an act of respect and love, not worship. The mosque is also the final resting place of many of the Prophet's companions, making it a site of profound historical and spiritual significance. For Muslims worldwide, Masjid al-Nabawi represents the heart of the Prophet's legacy,his life, his teachings, and the community he built. It is a place of tranquility, where the presence of the Prophet is deeply felt, and where believers come to connect with the one who was sent as a mercy to the worlds.