Shiva Purana
ततस्तस्मिन्गते कल्पे पीतवर्णे स्वयंभुवः। पुनरन्यः प्रवृत्तस्तु कल्पो नाम्ना शिवस्तु स ॥२२॥
When that Kalpa of yellow colour of the self-born lord elapsed, another Kalpa set in and it was named Śiva.
english translation
tatastasmingate kalpe pItavarNe svayaMbhuvaH। punaranyaH pravRttastu kalpo nAmnA zivastu sa ॥22॥
hk transliteration by Sanscript