If Allah wants to do good to somebody, He afflicts him with trials

If Allah wants to do good to somebody, He afflicts him with trials 
[Sahih Bukhari: Volume 7, Book 70, Number 548] 

Narrated Abu Huraira (Radi Allah Anhu): Allah's Apostle (sal-allahu-alleihi-wasallam) said, "If Allah wants to do good to somebody, He afflicts him with trials.

[Sahih Bukhari: Volume 7, Book 70, Number 545] Narrated Abu Sa'id Al-Khudri and Abu Huraira (Radi Allah Anhu): The Prophet Muhammad (sal-allahu-alleihi-wasallam

) said, "No fatigue, nor disease, nor sorrow, nor sadness, nor hurt, nor distress befalls a Muslim, even if it were the prick he receives from a thorn, but that Allah expiates some of his sins for that."

[Sahih Bukhari: Volume 7, Book 70, Number 547]
Narrated Abu Huraira (Radi Allah Anhu): Allah's Apostle (sal-allahu-alleihi-wasallam) said, "The example of a believer is that of a fresh tender plant; from whatever direction the wind comes, it bends it, but when the wind becomes quiet, it becomes straight again. Similarly, a believer is afflicted with calamities (but he remains patient till Allah removes his difficulties)  And an impious wicked person is like a pine tree which keeps hard and straight till Allah cuts (breaks) it down when He wishes."