Musnad Ahmad 30:2270

Qutaybah narrated to us, Ya'qub bin 'Abd al-Rahman narrated to us, from 'Amr bin Abi 'Amr, from Sa'id al-Maqburi, from Abu Hurayrah, that the Messenger of Allah (may Allah bless him and grant him peace) said: "Allah, the Almighty and Majestic, says: 'There is no reward with Me for My believing servant, if I take away his chosen one from the people of the world, then he seeks the reward for it [from Allah], except Paradise.'"