Nice Kaskara...need help with translation please

[CharlesS]

Here is a good old kaskara sword with an interesting double wrapped(apparently for comfort) hilt and an even pore interesting blade. The blade has a snake design on one side, with an Islamic inscription on the other. Both sides have what appear to be the differing phases of the moon down most of the length of the blade.

Can anyone help with the script translation??

Thanks.