The final Prophet of God (sallallaahu alaihi wasallam) said,
“My entire nation is safe, except al-Mujahirin (those who boast of their sins).
Among the Mujaharah is that a man commits an (evil) act, and wakes up in the morning while Allah has kept his (sin) a secret, he says: “O so- and-so! Last night I did this and that.”
He goes to sleep while Allah has kept his (sin) a secret but he wakes up in the morning and uncovers what Allah has kept a secret!”

The prophet (sallallaahu alaihi wasallam) said,
“Modesty brings nothing but good.”

The final Prophet of God(Sallallaahu `alayhi wa sallam) said,
“Whoever does not argue when he is in the wrong will have a home built for him on the edge of Paradise.
Whoever avoids it when he in the right will have a home built for him in the middle of Paradise.
And whoever improves his own character, a home will be built for him in the highest part of Paradise.”
[Reported in Tirmidhi]

The final Prophet of God(Sallallaahu `alayhi wa sallam) said,
“Whoever revives an aspect of my Sunnah that is forgotten after my death, he will have a reward equivalent to that of the people who follow him, without it detracting in the least from their reward.”
[Reported by al-Tirmidhi]

The Last Prophet of God (Sallallaahu `alayhi wa sallam) said,
“The most excellent jihad (struggle) is that for the conquest of self”

Some one asked the Prophet Muhammad (Sallallaahu `alayhi wa sallam):
“What actions are most excellent?”
The Prophet of God (Sallallaahu `alayhi wa sallam) replied,
“ To gladden the heart of a human being, to feed the hungry, to help the afflicted, to lighten the sorrow of the sorrowful, and to remove the wrongs of the injured.”

The Prophet of Allah (Sallallaahu `alayhi wa sallam) said,
“There is a polish for everything that takes away rust; and the polish for the heart is the remembrance of Allah.”

Abu Hurairah (Radiyallaahu `anhu) narrated that the Prophet (Sallallaahu `alayhi wa sallam) said,
“Allah (subhanahu wa ta’aala) does not look at your figures nor at your attire but He looks at your Hearts and your accomplishments”

The Messenger of Allah (Sallallaahu `alayhi wa sallam) said,
”Richness does not lie in the abundance of (worldly) goods, but richness is the richness of the soul (heart, self).”

The Messenger of God (Sallallaahu `alayhi wa sallam) said,
”He is successful who has accepted Islam, who has been provided with sufficient for his wants and been made contented by Allah with what He has given him.”