Shiva Purana
विद्येशं दशसाहस्रं रुद्रं वैनायकं तथा । औमं मातृपुराणाख्यं प्रत्येकाष्टसहस्रकम् ५२ ।
The first Saṃhitā of Vidyeśvara, consisted of ten thousand verses. The Raudra, Vaināyaka, Aumika and Mātṛ Saṃhitās consisted of eight thousand verses each.
english translation
vidyezaM dazasAhasraM rudraM vainAyakaM tathA । aumaM mAtRpurANAkhyaM pratyekASTasahasrakam 52 ।
hk transliteration by Sanscript