The consequences of ending the transgress
والذین اذا فعلوا فاحشة او ظلمواانفسهم ذکروا الله فاستغفروا لذنوبهم ومن یغفرالذنوب الا الله ولم یصروا علی ما فعلوا وهم یعلمون – اولئک جزاوهم مغفرة من ربهم وجنات تجری من تحتها الا نهار خالدین فیها ونعم اجر العاملین -surah ale imran
135. And those who, having done something to be ashamed of, or wronged their own souls, earnestly bring Allah to mind, and ask for forgiveness for their sins,- and who can forgive sins except Allah.- and are never obstinate In persisting knowingly In (the wrong) They have done.
136. For such the reward is forgiveness from their Lord, and Gardens with rivers flowing underneath,- an eternal dwelling: How excellent a recompense for those who work (and strive)!

ان الله لا یظلم مثقال ذرة وان تک حسنة یضعفها ویوت من لدنه اجرا عظیما - surah al nisa

40. Allah is never unjust In the least degree: if there is any good (done), He doubleth it, and giveth from His own presence a great reward.

ومن یعمل سوءا او یظلم نفسه ثم یستغفرالله یجد الله غفورا رحیما - surah nisa

110. If any one does evil or wrongs His own soul but afterwards seeks Allah.s forgiveness, He will find Allah Oft-forgiving, Most Merciful.

فمن تاب من بعد ظلمه واصلح فان الله یتوب علیه ان الله غفور رحیم - surah maidah
39. But if the thief repents after His crime, and amends His conduct, Allah turneth to Him In forgiveness; for Allah is Oft-forgiving, Most Merciful.