Musnad Abu Ya'la al-Mawsili 155:260

Uqbah narrated to us, Yunus narrated to us, Yahya bin Ayyub narrated to us, from Abu Zur'ah bin 'Amr bin Jarir, who said: Abu Hurairah said: "Indeed, the servant may have a high status with Allah that he does not attain by his deeds. So, Allah continues to test him with what he dislikes until He causes him to reach it."