The account of "prisoners of conscience" in Saudi Arabia on Twitter social networking detention Sheikh Mamdouh war with another group of preachers.
He said the reason for the arrest was to contribute to raising funds for drilling water wells in remote parts of Africa.
Earlier, Saudi rights authorities arrested Yasser bin Abdullah al-Ayyaf, known for his defense of prisoners of conscience in the kingdom.
Al-Atef said that Ayyaf was subjected to arrest and beating years ago for his activity in defending the detainees of opinion, especially those who remained in detention for years without trial or charge.
Since the accession of the Crown Prince Mohammed bin Salman to power in Saudi Arabia, the security services have arrested many scientists, preachers, economists, prominent writers and thinkers, and most of them are still behind bars, most notably d. Salman al-Awdah.