(Allah (SWT) says:) “I am the opponent of three on the Day of Resurrection, and if I am someone's opponent I will defeat him: A man who makes promises in My Name, then proves treacherous; a man who sells a free man and consumes his price; and a man who hires a worker, makes use to him, then does not give him his wages.”  

قَالَ رَسُولُ اللَّهِ ﷺ ثَلاَثَةٌ أَنَا خَصْمُهُمْ يَوْمَ الْقِيَامَةِ وَمَنْ كُنْتُ خَصْمَهُ خَصَمْتُهُ يَوْمَ الْقِيَامَةِ رَجُلٌ أَعْطَى بِي ثُمَّ غَدَرَ وَرَجُلٌ بَاعَ حُرًّا فَأَكَلَ ثَمَنَهُ وَرَجُلٌ اسْتَأْجَرَ أَجِيرًا فَاسْتَوْفَى مِنْهُ وَلَمْ يُوفِهِ أَجْرَهُ  

“Give the worker his wages before his sweat dries.”  

قَالَ رَسُولُ اللَّهِ ﷺ أَعْطُوا الأَجِيرَ أَجْرَهُ قَبْلَ أَنْ يَجِفَّ عَرَقُهُ