Musnad Ahmad 30:2021

Ibrahim ibn Abi al-Abbas narrated to us, he said: Abu Uways narrated to us, he said: Al-Zuhri said: Abu Salamah ibn Abd al-Rahman informed me, that Abu Hurayrah said: The Messenger of Allah, peace and blessings of Allah be upon him, said: "For every prophet there is a supplication, and I wish, if Allah wills, to store my supplication for the Day of Resurrection as an intercession for my nation."