Musannaf Ibn Abi Shayba 27:35

'Affan narrated to us, Hammad bin Salamah narrated to us, from 'Ali bin Zayd, from al-Hasan, from Abu Bakrah: That the Messenger of Allah (may Allah bless him and grant him peace) said: "Men from among those who accompanied me and saw me will certainly come to me at the Basin (al-Hawd). Until, when they are raised up to me, they will be snatched away from before me. I will surely say: 'O Lord, my companions!' It will be said: 'You do not know what they innovated after you.'"