Nefertari

Dutiful Priestess
What are you doing? No one is allowed inside the Palace of Duat! It's for your own safety. Without a Pharaoh sitting on the throne, the Sandsea writhes and thrashes dangerously. The Palace is its heart. You'll find horrors instead of shelter if you barge in. No one wants Sek-Duat to return, but if a new ruler sits upon the throne, light will return to the Palace's halls. Fil-imteHaan yokram il-mar' aw yohaan…

After completing the 'Chaos Lord Tibicenas' quest:

Dutiful Priestess
Fil-imteHaan yokram il-mar' aw yohaan… It's a chant that describes how one's true worth is known only through trial and tribulation. You have proved yourself in the thousand eyes of the Sandsea by saving us from Chaos, but humbly refused the crown. Pharaoh Zhoom was chosen by you, but he must prove himself as well. The Pontiffs, Priestesses and I will watch over the Duat as he leads us into a new era.

Location: Duat Palace

Thanks to Sammzy.