Sahih Muslim | Book 25 | Hadith Number 5349

Narrated by Sahl b. Sa'd
Sahl b. Sa'd reported that Mundhir b. Aba Usaid was brought to Allah's Messenger (may peace be upon him) at the time of his birth Allah's Apostle (may peace be upon him) placed him on his thigh and Abfi Usaid kept sitting there. Allah's Apostle (may peace be upon him) had been occupied with something else before him. Abu Usaid commanded his child to be lifted from the lap of Allah's Messenger (may peace be upon him) and so he was lifted. When Allah's Messenger (may peace be upon him) had finished the work he said: Where is the child? Abd Usaid said: Allah's Messenger, we took him away. He said: What is his name? He said; Allah's Messenger, it is so and so, whereupon he (the Holy Prophet) said: Nay, his name is Mundhir, and named him Mundhir on that day.