Shiva Purana
ततश्च प्रेषयामास मरुत्वान्सकलान्सुरान् ॥ न शेकुस्ते यदा ज्ञातुं तदेन्द्रः स्वयमभ्यगात् ॥ १८ ॥
Then Indra sent all the gods. When they could not realise anything Indra himself went there.
english translation
tatazca preSayAmAsa marutvAnsakalAnsurAn ॥ na zekuste yadA jJAtuM tadendraH svayamabhyagAt ॥ 18 ॥
hk transliteration by Sanscript