Aman U Layli...
Aman U Layli...
I assume you mean 'aman ya layli' it's not a song.. it's just a phrase used in many songs.. if you have more information about the song, that would be more useful to figuring out which song you're seeking.
The hours of pain have yielded good,
Which prosperous days refused;
As herbs, though scentless when entire,
Spread fragrance when they’re bruised.
Check This for more information and expanation for the word aman
and Layli: is night
لا يَشْكُرُ الله مَنْ لا يَشْكُرُ النَّاس
The One Who Doesn't Thank Others, Doesn't Thank God