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."

Backbiting and Slandering

Prophet Muhammad (PBUH) said :"Do you know what backbiting is?" They said, "God and His Messenger know best." He then said, "It is to say something about your brother that he would dislike." Someone asked him, "But what if what I say is true?" The Messenger of God said, "If what you say about him is true, you are backbiting him, but if it is not true then you have slandered him." (Muslim)

Creating false hadiths/statements

The Messenger of Allah (sal Allahu alaihi wa sallam) said: “Whoever attributes to me words that I did not say, let him take his place in Hell.” [Bukhari]

Example of a Believer and a Hypocrite

Narrated Kab:

The Prophet said, "The example of a believer is that of a fresh tender plant, which the wind bends it sometimes and some other time it makes it straight. And the example of a hypocrite is that of a pine tree which keeps straight till once it is uprooted suddenly.

[Volume 7, Book 70, Number 546]