Valmiki Ramayana Bala Kanda Sarga 36 Shloka 16

एवम् उक्त: having been spoken in this way by devatas, सुरपति: lord of devatas, येन तेजसा by which vital fluid, सगिरिकानना including mountains, forests, पृथिवी earth, व्याप्ता was pervaded, महीतले on the earth, प्रमुमोच released.

Thus replied by the devatas, the god of the gods released his vital fluid on earth. It pervaded the entire earth including mountains and forests.