Shiva Purana
चतुस्सहस्रसंख्येयं वायवीयमनुत्तमम् ॥ धर्मसंज्ञं पुराणं यत्तद्द्वादशसहस्रकम् ॥ ५६ ॥
The wind-god is excellent in number and numbers four thousand The Purana called Dharma is twelve thousand years old.
english translation
catussahasrasaMkhyeyaM vAyavIyamanuttamam ॥ dharmasaMjJaM purANaM yattaddvAdazasahasrakam ॥ 56 ॥
hk transliteration by Sanscript