Musnad Ahmad 33:617

Musa narrated to us, Ibn Lahi'ah narrated to us, from Abu al-Zubayr, who said: I asked Jabir about al-'Aqabah. He said: Seventy [people] witnessed it, and the Prophet, peace and blessings of Allah be upon him, agreed with them, while Abbas ibn 'Abd al-Muttalib was holding his hand. The Prophet, peace and blessings of Allah be upon him, said: "I have taken and I have given."