Which Companion saw two angels to the right and to the left of the Prophet, may Allah bless him and grant him peace, in the Battle of Uhud?

The Companion was Sa'd ibn Abi Waqqas, as Imam Muslim reported in his Sahih that Sa'd said: "I saw on the right and on the left of the Messenger of Allah, peace and blessings be upon him, on the Day of Uhud, two men dressed in white garments. I had not seen them before, nor did I see them after." These two were Jibreel and Mika'eel, peace be upon them.