Al-Mu'minun 23:4

بِسْمِ اللَّهِ الرَّحْمَـٰنِ الرَّحِيمِ قَدْ أَفْلَحَ الْمُؤْمِنُونَ

Certainly will the believers have succeeded:

الَّذِينَ هُمْ فِي صَلَاتِهِمْ خَاشِعُونَ

They who are during their prayer humbly submissive

وَالَّذِينَ هُمْ عَنِ اللَّغْوِ مُعْرِضُونَ

And they who turn away from ill speech

وَالَّذِينَ هُمْ لِفُرُوجِهِمْ حَافِظُونَ

And they who guard their private parts

إِلَّا عَلَىٰ أَزْوَاجِهِمْ أَوْ مَا مَلَكَتْ أَيْمَانُهُمْ فَإِنَّهُمْ غَيْرُ مَلُومِينَ

Except from their wives or those their right hands possess, for indeed, they will not be blamed -

فَمَنِ ابْتَغَىٰ وَرَاءَ ذَٰلِكَ فَأُولَـٰئِكَ هُمُ الْعَادُونَ

But whoever seeks beyond that, then those are the transgressors -