In the pre-Islamic period we used to say: "May Allah make the eye happy for you," and "Good morning" but when Islam came, we were forbidden to say that. AbdurRazzaq said on the authority of Ma'mar: It is disapproved that a man should say: "May Allah make the eye happy for you," but there is no harm in saying: "May Allah make your eye happy.  

كُنَّا نَقُولُ فِي الْجَاهِلِيَّةِ أَنْعَمَ اللَّهُ بِكَ عَيْنًا وَأَنْعِمْ صَبَاحًا فَلَمَّا كَانَ الإِسْلاَمُ نُهِينَا عَنْ ذَلِكَ قَالَ عَبْدُ الرَّزَّاقِ قَالَ مَعْمَرٌ يُكْرَهُ أَنْ يَقُولَ الرَّجُلُ أَنْعَمَ اللَّهُ بِكَ عَيْنًا وَلاَ بَأْسَ أَنْ يَقُولَ أَنْعَمَ اللَّهُ عَيْنَكَ