1-Acceptance of deeds: It is a very important fruit of Ikhlass, since Ikhlass is a precondition for the acceptance of deeds. The Prophet (peace be upon him) said: &"Certainly Allah the Exalted only accepts those deeds done with sincerity and (performed) solely to earn His pleasure&" (Narrated by an-Nasa&"i).
2-Victory and dominance: The Prophet (peace be upon him) said: “Verily, Allah grants victory to this nation because of the weak people in it; by their invocation, prayer and sincerity” (Narrated by an-Nasa&"i).
3-Hearts become cured from moral diseases: These diseases are envy, malice, spite and treachery. In the farewell piligrimage sermon, the Prophet (peace be upon him) said: &"The heart of a believer possessing these three qualities can never be overpowered by malice or enmity; the believer who performs all actions with complete sincerity (i.e. solely for the pleasure of Allah the Exalted in accordance to the manner that has been prescribed by the Prophet), showing obedience to the leaders of Islam and fulfilling their rights, and remaining steadfast (and upholding the religion) with the Muslim Ummah (nation). Such people’s supplications encompass the entire Ummah” (Narrated by at-Tirmidhi).Ibnu &"Omar said: &"If I am sure that Allah accepts even one sajjdah (prostration) of my salah and even one dirham of my sadaqa (charity), there would not be a visitor more beloved to me in this world than death. Do you know from whom Allah accepts deeds?&" &"Indeed, Allah only accepts from the righteous (who fear Him)&" (Al-Mâ&"idah: 27).
4-Worldly actions are added to righteous deeds and are rewarded: The Prophet (peace be upon him) said: “… and in man&"s sexual intercourse (with his wife), there is Sadaqa (charity).” They (the Companions) said: “O Messenger of Allah; is there reward for him who satisfies his sexual passion among us?” He said: “Tell me, if he were to devote it to something forbidden (e.g. fornication), would it not be a sin on his part? Similarly, if he were to devote it to something lawful, he should have a reward.” (Narrated by Muslim).
5-It drives away bad ideas and satanic, evil thoughts: Allah (mighty and majestic is He) tells us about what Shaytan said when Allah drove him out of Jannah, away from His Mercy: 39- (Iblees) said: “My Lord, because You have put me in error, I shall surely make (disobedience) attractive to them on earth, and I shall mislead them all” 40- “Except, among them, Your chosen servants&" (Al-Hijr: 39-40).
6-Relief from distress and calamities: an example of this is the famous story of the three men who were forced to take shelter from rain in a cave overnight, and a large rock closed the cave door and they could not leave the cave. The Hadeeth has been authenticated in the two most authenticated books of Hadeeth (i.e., Al-Bukari and Muslim).One person is he who secludes himself from worldly pleasures, though he craves for them in his heart, and the other person is he who mingles with and sees all these worldy pleasures but secludes his heart from craving for them. The latter is wiser that the former.
7-Being saved and secure from the dangers of temptations: an example of this is what happened to the Prophet of Allah, Yusuf (Joseph) (peace be upon him). Allah tells us about this: &" She certainly determined (to seduce) him, and he would have inclined to her had he not seen the proof of his Lord. And thus (it was) that We should avert from him evil and immorality. Indeed, he was of Our chosen servants&" (Yûsuf: 24).One virtuous small deed might be abundantly rewarded because of one’s niyah (intention), and many good deeds might be scarcely rewarded also because of one’s niyah.
8-Receiving the reward despite being unable to carry out the good deed that one intended to do. Allah (mighty and majestic is He) says: &"Nor (is there blame) upon those who, when they came to you that you might give them mounts, you said: &"I can find nothing for you to ride upon.&" They turned back while their eyes overflowed with tears out of grief that they could not find something to spend (in the cause of Allah)&" (At-Taubah: 92).
The Prophet (peace be upon him) said: &"Whoever asks Allah for martyrdom, sincerely from his heart, Allah will cause him to reach the status of the martyrs even if he dies in his bed&" (Narrated by Muslim).
9-Entering Jannah: Allah (mighty and majestic is He) says: &" You will not be recompensed except for what you used to do&" (As-Sâffât: 39).Hide your good deeds as you hide your bad actions.
Allah the Exalted also says: 40- …but not the chosen servants of Allah. 41- Those will have a provision determined -42- Fruits; and they will be honoured 43- In gardens of pleasure 44- On thrones facing one another. 45- There will be circulated among them a cup (of wine) from a flowing spring, 46- White and delicious to the drinkers; 47- No bad effect is there in it, nor from it will they be intoxicated. 48- With them will be women limiting (their) glances, with large (beautiful) eyes, 49- As if they were (delicate) eggs, well-protected&" (As-Sâffât: 40-49).
This is one of the greatest fruits of Ikhlass.