Hazrat ‘Aa’ishah (radhiyallahu ‘anha) narrates:
There was a Jew residing in Makkah Mukarramah for business purposes. On the night Rasulullah (sallallahu ‘alaihi wasallam) was born, he asked the Quraish whether any male child had been born that night. The Quraish replied that they did not know if any male child had been born. The Jew thus said, “Make enquiries regarding whether any male child was born last night. Certainly, I know that the prophet of this ummah was born last night. This child has a symbol (seal) of prophethood between his shoulders. He will not be able to drink any milk for two days because a jinn has placed a finger over his mouth.”
Without further delay, the people got to their feet to investigate this matter. They discovered that a boy was born to ‘Abdullah bin ‘Abdil Muttalib. The Jew asked to be taken along with them so that he may be shown the child. When he caught sight of the symbol (seal) of prophethood between the shoulders, he fell down unconscious. As he regained consciousness, he said, “Prophethood has vanished from the Banu Israa’eel. O people of Quraish! By Allah! This infant will launch such an attack upon you that news of this attack will spread from east to west.”
(Extracted from Seeratul Mustafa 1/55)