Gospel of Barnabas:
“The disciples answered, “O Master, who shall that man be of whom you speak, who shall come into the world?” Jesus answered with joy of heart: ‘He is Mohammad; Messenger of God, and when he comes into the world, even as the rain makes the earth to bear fruit when for a long time it has not rained, even so shall he be occasion of good works among men, through the abundant mercy which he shall bring. For he is a white cloud full of the mercy of God, which mercy God shall sprinkle upon the faithful like rain.”