Nejd

The following tradition is from the Book of the Prayer of Rain of Sahih Al Bukhari. Narrated by Ibn' Umar :
The Prophet (SAW) said, "O Allah! Bless our Sham and our Yemen." People said, "Our Najd as well." The Prophet again said, "O Allah! Bless our Sham and Yemen." They said again, "Our Najd as well." On that the Prophet said, "There will appear earthquakes and afflictions, and from there will come out the side of the head of Satan."
So you can always expect bad leaders rising from North of Saudi Arabia. False Prophets appeared after the death of our Prophet (SAW). Well-known among them were Musailama in Yamama; Tulaiha Asadi in Nejd; Laqait bin Malik in Oman; and Aswad Ansi in Yemen. Among those who killed Musailma was Wahshi, the negro slave who had killed Hamza, the uncle of the holy Prophet at Ohud. He had done this to win his freedom. Hind, the wife of Abu Sufyan, had promised to buy him his freedom if he slew Hamza. After the fall of Mecca, Wahshi became a Muslim. The Holy Prophet forgave him but said, "Please Wahshi, keep out of my sight. You remind me of my dear uncle."