Srimad Bhagavatam Canto 09, Chapter 10, Text 05

SB 9.10.5

visvamitradhvare yena
 maricadya nisa-carah
pasyato laksmanasyaiva
 hata nairrta-pungavah
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
In the arena of the sacrifice performed by Visvamitra, Lord Ramacandra, the King of Ayodhya, killed many demons, Raksasas and uncivilized men who wandered at night in the mode of darkness. May Lord Ramacandra, who killed these demons in the presence of Laksmana, be kind enough to give us protection.
Srimad Bhagavatam Canto 09, Chapter 10, Text 04
Srimad Bhagavatam Canto 09, Chapter 10, Text 06-07