Allah says in Soorat Maryam: In the name of Allah, the Most Gracious, the Most Merciful (interpretation of the meaning): “He [‘Eesa (Jesus)] said: ‘Verily, I am a slave of Allaah, He has given me the Scripture and made me a Prophet’” [Maryam 19:30].
My question is: What was the Book or Scripture meant by Sayyiduna ‘Eesa (peace be upon him)? Was it the Gospel? If it was, how could it be given to a child in the cradle? Does it mean that he knew it by heart? And how did he teach it to the people?.

Muhammad the Messenger of Allah (Peace Be upon Him)