Srimad Bhagavatam Canto 08, Chapter 11, Text 34

SB 8.11.34

yena me purvam adrinam
 paksa-cchedah prajatyaye
krto nivisatam bharaih
 patattraih patatam bhuvi
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Indra thought: Formerly, when many mountains flying in the sky with wings would fall to the ground and kill people, I cut their wings with this same thunderbolt.
Srimad Bhagavatam Canto 08, Chapter 11, Text 33
Srimad Bhagavatam Canto 08, Chapter 11, Text 35