Shiva Purana
प्रजायन्ते क्रियावन्तो महर्षिभिरलंकृताः ॥ विद्युतोऽशनि मेघांश्च रोहितेन्द्रधनूंषि च ॥ २०॥
Endowed with sacred rites they were born along with the other Sages. The lightning, the thunderbolt, the red clouds and the rainbow were created.
english translation
prajAyante kriyAvanto maharSibhiralaMkRtAH ॥ vidyuto'zani meghAMzca rohitendradhanUMSi ca ॥ 20॥
hk transliteration by Sanscript