Shiva Purana
कपालं ब्रह्मणो रुद्रस्सर्वेषामेव पश्यताम् ॥ हस्तात्पतन्तमालोक्य ननर्त परया मुदा ॥ ५७॥
On seeing the skull of Brahmā falling from his hand, even as everyone was watching it, Rudra danced with great joy.
english translation
kapAlaM brahmaNo rudrassarveSAmeva pazyatAm ॥ hastAtpatantamAlokya nanarta parayA mudA ॥ 57॥
hk transliteration by Sanscript