The Garden of Guidance.
Allah, the Mighty and Majestic, said:
“And (it was said unto him): Take in thine hand a branch and smite therewith, and break not thine oath. Lo! We found him steadfast, how excellent a slave! Lo! he was ever turning in repentance (to his Lord).” (38:44)
"Indeed, We found him patient,
an excellent servant; truly, he was ever turning back to Allah."
And on the authority of Abu Hurayrah (may Allah be pleased with him), who said:
The Messenger of Allah (peace and blessings of Allah be upon him) said:
"No believer is pricked by a thorn in this world and anticipates Allah's reward for it,
except that his sins are subtracted because of it on the Day of Resurrection."
Related by Ahmad.
A point of benefit:
'Abd al-'Aziz Ibn Abi Dawud (may Allah have mercy on him) said:
"Three things are from the treasures of Paradise:
concealing affliction,
concealing illness,
and concealing charity."