Musnad Ahmad 1716Sahih, because of corroborating evidence; this is a Da'if is
It was narrated from alHasan that Sa"d, the freed slave of Abu Bakr, said: I brought some dates to the Messenger of Allah (ﷺ) and they started taking two at a time. The Messenger of Allah (ﷺ) said: "Do not take two at a time.”