بسم الله الرحمن الرحيم
الحمد لله رب العالمين وصلى الله وسلم على رسول الله وعلى آله وأصحابه ومن اهتدى بهديه إلى يوم الدين
Narrated Asma’ bint Abu Bakr RA:
I conceived ‘Abdullah bin Az-Zubayr at Makkah and went out (of Makkah) while I was about to give birth. I came to Madinah and encamped at Quba’, and gave birth at Quba’. Then I brought the child to Allah’s Apostle salalahu ‘alayhi wasalam and placed him (on his lap). He asked for a date, chewed it, and put his saliva in the mouth of the child. So the first thing to enter its stomach was the saliva of Allah’s Apostle. Then he did his Tahneek with a date, and invoked Allah to bless him. It was the first child born in the Islamic era, therefore they (Muslims) were very happy with his birth, for it had been said to them that the Jews (of that time) had bewitched them, and so they would not produce any offspring.
[Sahih al Bukhari; Book #66, Hadith #378]