Hath not the tidings come to you of those before you: the people of Nuh and the 'Aad and the Thamud and those after them! None knoweth them save Allah. There came unto them their apostles with the evidences, but they put their hands to their mouths, and said: verily we disbelieve in that where- with ye have been sent, and verily regarding that to which ye call Us We are in doubt disquieting.