I
"A few days after Jesus had died on the cross and been buried, his apostles claimed that they had seen and talked with him. They believed that Jesus was indeed the messiah and had risen from the dead, or been resurrected."
Global History and Geography: The Growth of Civilization pp 143 by Henry Brun, Lillian Forman and Herbert Brodsky, Amsco School Publications, Inc., 2008.
"Muhammad was the messenger of Allah."
Global History and Geography: The Growth of Civilization pp 182 by Henry Brun, Lillian Forman and Herbert Brodsky, Amsco School Publications, Inc., 2008.
II
"After the death of Jesus, his followers proclaimed that he had risen from death and had appeared to them. They believed Jesus to be the Messiah (anointed one)..."
World History pp 170 by Jackson J. Spielvogel, McGraw Hill Glencoe, 2008.
"The revelations of Allah (God) to Muhammad are written down in the Quran, or holy book of Islam."
World History pp 210 by Jackson J. Spielvogel, McGraw Hill Glencoe, 2008.
III
"The authors of the Gospels believed Jesus was the son of God..."
The Western Heritage Ninth Edition pp 161 by Donald Kagan, Steven Ozment and Frank M. Turner, Pearson Prentice Hall, 2007.
"[Muhammad] began to receive revelations from the angel Gabriel, who recited God's word to him at irregular intervals."
The Western Heritage Ninth Edition pp 200 by Donald Kagan, Steven Ozment and Frank M. Turner, Pearson Prentice Hall, 2007.