they said they had no oversight over marriage offices in kadhimiya and declined to give an intervi.to conduct marriages, also refused to tal us. we approached more than 20 senior shia clerics. some condemned the abuse we found, but none would go on camera to discuss it. one former high-ranking clerico agreedlk to us-- ghaith tamimi. >> tamimi: >> maghafi: he's become an outspoken cric of the religious leadership in iraq. after receiving death threats, he's now living in exile in london. he says that most shia muslims would be horrified at muta'ah b marriageng used to enable men to marryhildren. >> tamimi: ♪ >> maghafi: we'd been told that abusive muta'ah marriages were happening near the holiest site in shia islam. this is karba, it's the biggest shia pilgrimage site in the world.f tens of millions olgrims comeere every ar. ♪ i spoke to sheikh emad alassady, the head of the shrine's marriage office. so we've heard about pleasure marriages, muta'ah marriages. do you do them here? >> alassady: >> maghafi: but he said they dot still happen in se and are allowable under sharia law. don'

(rustling) to find out w widespread it is, we had one of our colleagues go undercover in kadhimiya.risked being detained by one of iraq's feared shia militias. we're concealing his identity. r >> when i arrived, ieally scared. first checkpoint was really scary, because i had a secret camera. they found this, no way i can run away. go through years of religiousib education, it's in iraq to become a cleric and open a marriage office with very little formal training. posi as a potential client, our reporter met witten clerics here, telling them he wanted a pleasure marriage with a 13-year-old. eight of those clerics agreed to conduct such a marriage if he had the parents' consent. one of them was sayyid raa >> saam alaikum. (raad speaking arabic)ou >> maghafi: r reporter met him outside the main shrine and went with him to his nearby office he saw his license to conduct marriages issued by the iraqi ministry of justice. raad said he had two offices in kadhimiya and employed four other cler his title, "sayyid," means he claims descent from the propheta mmad. raad and reporter: >> maghaf