Zayd Bin Harith (R.A) name mentioned in the Surah Al-Ahzab 33rd Surah of Quran verse number 37.

Hazrat Zayd Bin Harith، the adopted son and Sahabi of Prophet Muhammad ﷺ

Hazrat Zayd Bin Harith is commonly regarded as the fourth person to have accepted Islam, 

Hazrat Zayd Bin Harith Born: 581 AD

Hazrat Zayd Bin Harith Died: 629 AD, Mu'tah, Jordan