In the Islamic tradition, Mary and Jesus were the only children who could not be touched by Satan at the moment of their birth, for God imposed a veil between them and Satan. According to author Shabbir Akhtar, the Islamic perspective on Mary's Immaculate Conception is compatible with the Catholic doctrine of the same topic. "O People of the Book! Do not go beyond the bounds in your religion, and do not say anything of Allah but the truth. The Messiah, Jesus son of Mary, was but a Messenger of God, and a Word of His (Power) which He conveyed to Mary, and a spirit from Him. So believe in Allah (as the One, Unique God), and His Messengers (including Jesus, as Messenger); and do not say: (Allah is one of) a trinity. Give up (this assertion) â€" (it is) for your own good (to do so). Allah is but One Allah ; All-Glorified He is in that He is absolutely above having a son. To Him belongs whatever is in the heavens and whatever is on the earth. And Allah suffices as the One to be relied on, to Whom affairs should be referred." Quran 4/171