Ta-Ha - 20:112 Those who have faith and act virtuously will not fear any injustice or hardship.
Allah does not leave any good deed unrequited:
The Family Of Imran/3:195 "Their Lord answered them: "I will not leave unrewarded any of you who works, whether male or female; you are all equal. Those who emigrated, those who were expelled from their homes, those who were tortured and insulted in My way, those who fought and were killed... I will cover their evil deeds and place them in gardens with rivers flowing in them as a reward from Allah. The best reward is with Allah."

The Bee/16:97 Whoever does a good deed in faith, whether male or female, We will grant him a good life in this world, and We will give them their reward in full for their good deeds.

The Cow/2:110 Observe the prayer and pay the zakat. Whatever good you do for yourselves, you will surely find it in the sight of Allah. Allah sees everything you do.
The Cow/2:272 It is not for you to guide them to the truth. But Allah guides whom He wills. Whatever good you do to the needy is for your own benefit. Your charity should be for Allah alone. Whatever good you do will be repaid to you in full. You will not be wronged.

The Family Of Imran/3:30 A day will come when every person will find every good deed before him. He will wish that there is a long distance between him and every evil he does. Allah is warning you about Himself. Allah is compassionate to the servants.

The One Covering Himself/73:20 Your Lord knows that you and a group of your companions get up less than two-thirds, half and one-third of the night. Allah determines the amount of the night and the day. He has forgiven you because He knows that you cannot do it. So read from the Qur´an as much as is easy for you. He knows that among you are the sick, those who seek sustenance from the bounty of Allah in the earth, and those who fight in the way of Allah. Read from it as much as is easy for you. Observe the prayer, pay the zakat, and make a debt to Allah through good deeds. Whatever good you do for yourselves you will find a better and greater reward in the sight of Allah. Seek forgiveness from Allah; Allah is Forgiving, Merciful.

The Repentance/9:120 Neither the people of the city nor the Arabs around them should lag behind the Messenger of Allah, nor should they prefer themselves to him. For every thirst, fatigue and hunger they suffer in the way of Allah, every step they take in the way of Allah that will anger the disbelievers, and every success they gain against the enemy will be written down as a credit for them. Allah never loses the reward of those who do good.
The Repentance/9:121 Every help they give, great or small, and every valley they overcome will be written down for them as a credit. Allah will reward them with the best of what they did.