Srimad-Bhagavatam: Canto 6 - Chapter 1 - Verse 34
Sanskrit:
तदा च खे दुन्दुभयो विनेदु-र्गन्धर्वसिद्धा: समहर्षिसङ्घा: ।वार्त्रघ्नलिङ्गैस्तमभिष्टुवानामन्त्रैर्मुदा कुसुमैरभ्यवर्षन् ॥ ३४ ॥
ITRANS:
tadā ca khe dundubhayo vinedurgandharva-siddhāḥ samaharṣi-saṅghāḥvārtra-ghna-liṅgais tam abhiṣṭuvānāmantrair mudā kusumair abhyavarṣan
Translation:
When Vṛtrāsura was killed, the Gandharvas and Siddhas in the heavenly planets beat kettledrums in jubilation. With Vedic hymns they celebrated the prowess of Indra, the killer of Vṛtrāsura, praising Indra and showering flowers upon him with great pleasure.