Aal-'Imran - 3:171

يَسْتَبْشِرُونَ بِنِعْمَةٍ مِّنَ اللّهِ وَفَضْلٍ وَأَنَّ اللّهَ لاَ يُضِيعُ أَجْرَ الْمُؤْمِنِينَ
[3:171]
They rejoice on account of favor from Allah and (His) grace, and that Allah will not waste the reward of the believers.
They glory in the Grace and the bounty from Allah, and in the fact that Allah suffereth not the reward of the Faithful to be lost (in the least).
They rejoice because of favour from Allah and kindness, and that Allah wasteth not the wage of the believers.