It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Indeed, a servant has a high rank with Allah which he cannot attain through his deeds alone, so Allah Almighty continues to afflict him with things he dislikes (hardships) until He brings him to that rank." This hadith has an authentic chain (sahih al-isnad), but the two Shaykhs did not record it.