The Story Of Hazrat Zaid bin Harithah R.A

Coming back to the question asked as well as the explanation given, it is clear that the Companion whose name is mentioned in the Quran is Zaid bin Harithah RA. His name is mentioned in verse number 37 of Surah al-Ahzab which narrates about the marriage of Zaid RA with his wife, Zainab binti Jahsy RAnha.