Dayro d'Mor Sergius - Ayn Jaj

Dayro d'Mor Sergius - Ayn Jaj

The Monastery of Deir al-Ajaj, also known as Ayn Jaj or the Monastery of Mor Sergius the Martyr, was a fortified Syriac Orthodox monastery situated in the Ayn al-Faras area west of Takrit, along the desert route connecting the Tigris, the Euphrates, and Aqula (Kufa). The name "al-Ajaj" is an Arabic phonetic assimilation of its original Syriac name, "Ayn Jaj". The complex featured a natural spring outside its walls that fed into a pool filled with sweet black fish, which irrigated the surrounding farmland and vegetable gardens.

The monastery was established between 629 and 649 AD by Mor Marutha, Maphrian of the East (known also as Marutha of Takrit). After discovering the spring of Ain Jaja, Marutha oversaw the digging and collection of its water, constructing a monastery named after Mar Sergius near the site. He decorated the complex with magnificent buildings, precious curtains, vestments, sacred vessels, and prayer books, while endowing it with livestock and provisions. Marutha gathered a community of devout monks at the site and appointed Rabban Mor Saba as their leader.

In his biography of Marutha, Mor Denha I, Maphrian of the East (649–659 AD), described the monastery as a central sanctuary, shelter, and resting place for travelers, desert dwellers, and those journeying between Takrit, Aqula, Hit, and the Tigris and Euphrates rivers. The monastery offered refuge, food, water, and medical care to travelers and local populations facing harsh weather, dangerous terrain, or poverty. The resident monks maintained an austere lifestyle marked by continuous prayer, vigils, strict fasting on bread and brackish water, and intense ascetic discipline.

The monastery remained an active spiritual and social center for over six hundred years. It eventually fell into ruin during the mid-thirteenth century AD, likely as a result of destruction, looting, and pillaging during the Tatar wars.