Musnad Ahmad #905

It was narrated that Sa`eed bin Wahb. and Zaid bin Yuthai’ said: ‘Ali adjured the people at ar-Rahbah, saying: Whoever heard the messenger of Allah (ﷺ) speak on the day of Ghadeer Khumm, let him stand up. And (of the people) around Sa’eed, six men stood up, and (of the people) around Zaid, six men stood up, and they testified that they had heard the Messenger of Allah (ﷺ) say to ‘Ali (رضي الله عنه) on the day of Ghadeer Khumm. “Isn`t it Allah Who is closer to the believers?” They said: Yes. He said: `O Allah, if I am a person`s mawla (friend and supporter) then ‘Ali is also his mawla; O Allah, take as friends those who take him as a friend, and take as enemies those who take him as an enemy.” A hadeeth like that of Abu Ishaq was narrated from `Amr Dhi Murr, i.e., from Sa`eed and Zaid, and he added to it: `and support those who support him, and forsake those who forsake him.` A similar report was narrated from Abut-Tufail from Zaid bin Arqam from the Prophet (ﷺ).