Shiva Purana
एतस्मित्रंतरे देवः शिवो गगनमास्थितः ॥ युद्धं चकार तत्रस्थस्सोर्जुनश्च तथाऽकरोत्॥ १०॥
In the meantime, lord Śiva stood in mid-air and fought. Arjuna too did likewise.
english translation
etasmitraMtare devaH zivo gaganamAsthitaH ॥ yuddhaM cakAra tatrasthassorjunazca tathA'karot॥ 10॥
hk transliteration by Sanscript