Al-An'am 6:160
مَن جَآءَ بِٱلْحَسَنَةِ فَلَهُۥ عَشْرُ أَمْثَالِهَا ۖ وَمَن جَآءَ بِٱلسَّيِّئَةِ فَلَا يُجْزَىٰٓ إِلَّا مِثْلَهَا وَهُمْ لَا يُظْلَمُونَ
Man jaa bilhasanatifalahu AAashru amthaliha waman jaa bissayyi-atifala yujza illa mithlaha wahum layuthlamoon
"Whoever comes [on the Day of Judgement] with a good deed will have ten times the like thereof [to his credit], and whoever comes with an evil deed will not be recompensed except the like thereof; and they will not be wronged."
Al-An'am 6:160, translation by Sahih International
A short reflection
Whoever brings a good deed will have ten like it. Whoever brings an evil deed will be recompensed only by its like.