(It was a very big Mirracle when he spoke when he was newly born. This was due to the command of Allah)
Surah No. 19, Maryam, Ayats No. 27 to 31
يَا أُخْتَ هَارُونَ o فَأَتَتْ بِهِ قَوْمَهَا تَحْمِلُهُ قَالُوا يَا مَرْيَمُ لَقَدْ جِئْتِ شَيْئًا فَرِيًّا
فَأَشَارَتْ إِلَيْهِ قَالُوا o مَا كَانَ أَبُوكِ امْرَأَ سَوْءٍ وَمَا كَانَتْ أُمُّكِ بَغِيًّا
قَالَ إِنِّي عَبْدُ اللَّهِ آتَانِيَ الْكِتَابَ o كَيْفَ نُكَلِّمُ مَن كَانَ فِي الْمَهْدِ صَبِيًّا
وَجَعَلَنِي مُبَارَكًا أَيْنَ مَا كُنتُ وَأَوْصَانِي بِالصَّلَاةِ o وَجَعَلَنِي نَبِيًّا
o بِالصَّلَاةِ وَالزَّكَاةِ مَا دُمْتُ حَيًّا
Then she brought him (the baby) to her people, carrying him. They said: "O Maryam (Mary)! You have brought a thing unheard of ". "O sister of Harun (Aaron) ! Your father was not a man who used to commit adultery, nor your mother was an unchaste woman." Then she pointed towards the child. They said: "How can we talk to one who is a child in the cradle ? " He [Isa (Jesus)] said: " In fact ! I am a slave of Allah, He has given me the Scripture and made me a Prophet;" "And He has made me blessed wherever I may be, and has enjoined on me Salat (prayer) and Zakat, as long as I live."
Surah No. 61, As Saff, Ayat No. 6
وَإِذْ قَالَ عِيسَى ابْنُمَرْيَمَ يَا بَنِي إِسْرَائِيلَ إِنِّي رَسُولُ اللَّهِ إِلَيْكُم مُّصَدِّقًالِّمَا بَيْنَ
يَدَيَّ مِنَ التَّوْرَاةِ وَمُبَشِّرًا بِرَسُولٍ يَأْتِي مِنبَعْدِي اسْمُهُ أَحْمَدُ فَلَمَّا جَاءهُم
o بِالْبَيِّنَاتِ قَالُوا هَذَا سِحْرٌمُّبِينٌ
And (remember) when ' Isa (Jesus), son of Maryam (Mary), said: "O Children of Israel! I am the Messenger of Allah and confirming the Taurait (Torah) which came before me, and giving glad tidings of a Messenger to come after me, whose name will be Ahmed. But when he [Ahmed (Mohammad, saws)] came to them with clear proofs, they said: "This is plain magic ."