The Zain ul Abideen Mosque, also known as Al-Sajjad Mosque, is located in the holy city of Karbala, Iraq. Situated near the mausoleum of Husayn ibn Ali, the Zain ul Abideen Mosque holds immense significance for Shia Muslims, as it honors the fourth Shia Imam Ali ibn Husayn, known as Zain ul Abideen. He was the son of Imam Husayn and survived the Battle of Karbala. The mosque features traditional Islamic architecture with a grand dome, ornate minarets, and an open courtyard, which accommodates worshippers during peak religious times. Pilgrims from around the world visit the sacred site, especially during the first month of the Islamic calendar, Muharram, and the day of Ashura, which commemorates the martyrdom of Imam Husayn. The mosque’s interior is adorned with intricate calligraphy and mosaic tiles, creating a serene environment that reflects the history and spirituality of the place. The mosque serves not only as a site for prayer and reflection but also as a center for religious learning and community gatherings.