Which verse are you speaking of? I don't recall Jesus as ever speaking while a baby. He did speak when he was twelve years old. (Luke 2:41-52) Do you find speaking at 12 years old to be mythological?
It was narrated on the authority of Abu Hurairah, may Allaah be pleased with him, that the Prophet, peace and blessing be upon him, said:
«No one spoke in the cradle but three (persons): ‘Eesa (Jesus) son of Maryam (Mary), the second one was the companion of Jurayj; the pious worshipper. Jurayj took a secluded hermitage for worship and confined himself in it. His mother came to him as he was busy in prayer, and she called, 'O Jurayj!' He said, 'O My Lord, my mother (is calling me) and (I am offering) my prayer (what shall I do)?.' He continued with the prayer. She returned and came the following day and he was (still) busy in prayer. She called, 'O Jurayj!' He said, 'My Lord, my mother (is calling me) and (I am offering) my prayer (what shall I do)?', and he continued with the prayer, and she returned. Then the next day she came again while he was busy in prayer, and called, 'O Jurayj!' He said, 'My Lord, my mother (is calling me) and (I am offering) my prayer (what shall I do)?' and he continued with the prayer. She said, 'O Allaah! Do not let him die until he sees the faces of prostitutes.'
The story of Jurayj and that of his meditation and prayer spread among the children of Israel. There was a prostitute who was beauty personified. She said (to the people), "If you like, I can lure him into evil." She presented herself to him but he paid no heed (to her). She came to a shepherd who lived near the hermitage and she offered herself to him. He (the shepherd) had sexual intercourse with her and she became pregnant. When she gave birth to a baby she said, 'This baby is from Jurayj.' So they came and asked Jurayj to leave and they demolished the hermitage and began to beat him. He asked them what was the matter. They said, 'You committed fornication with this prostitute and she gave birth to a baby from you.' He said, 'Where is the baby?' They brought him (the baby) and then he said, 'Just leave me so that I should perform prayer.'
He performed prayer and when he finished, he struck the baby’s stomach with his finger, and asked him, 'O boy, who is your father?' The baby answered, 'He is the shepherd. So, the people turned towards Jurayj, kissed him and touched him (seeking blessings), and said, 'We are ready to construct your hermitage with gold.' He said, 'No, just rebuild it with mud as it was,' and so they did.»
The Prophet, peace and blessing be upon him, continued:
«Then, there was a baby whose mother was suckling him when a person dressed in a fine garment came riding on a priceless animal. His mother said, 'O Allaah, make my child like this one.' He (the baby) left his mother’s breast, looked at the rider and said, 'O Allaah, Do not make me like him.' He then returned to the breast and resumed sucking.» He (i.e. Abu Hurairah) said, 'It is as though I can see the Messenger of Allaah, peace and blessing be upon him, illustrating the scene of his sucking milk with his forefinger in his mouth and sucking that.
The Prophet, peace and blessing be upon him, continued:
«It so happened that a slave girl passed by them who was being beaten and the people behind her were saying, 'You committed fornication and theft.' She was saying, 'Sufficient for me is Allaah, and [He is] the best Disposer of affairs', and his mother said, 'O Allaah, Do not make my child like her.' He left the breast, looked at her, and said, 'O Allaah! make me like her.' This was followed by a conversation between the mother and child. She said, 'A good-looking man happened to pass by, and I said: O Allaah, make my child like him, and you said: O Allaah, do not make me like him, and there passed a girl and the people were beating her, and saying: You committed fornication and theft, and I said: O Allaah, do not make my child like her, and you said: O Allaah, make me like her.' The infant said, 'That man was a tyrant, and I said: O Allaah, do not make me like him; and they were saying about the girl: 'You committed fornication', whereas in fact, she had not committed that and they were saying: 'You have committed theft, whereas she had not committed theft', so I said: O Allaah, make me like her» (1).