In Skanda Purana under “Vaishnava Khanda” glories of Lord Venkatesha & Tirumala-hill is mentioned with title “Venkatachalamahatmya (bhoomi-varaha-Khanda)“.
Eulogizing Lord Venkateshwara, Suta Maharshi (Suta Gowami) says – “A man, who has the good fortune of seeing the divine appearance of Lord Srinivasa even for a moment, attains salvation.”
Skanda Puran also mentioned Sri Venkatesa Stotra(prayer) by Sage Padmanabha.
“Namo devasdhi devaaya, sarngine ,
Nararayanadhri vasaya , srinivasaya they nama. ||”
Translation: Salutations to the God of Gods who holds the Sarnga bow, Salutation to Srinivasa who lives on the Narayana mountain.
Excerpts from SkAndha PurANam
Let us salute this Lord on the top of Saptha Giri now:
“NaarAyaNaadhri-nivAsAya SrInivAsaya tE nama: SeshAchala nivAsAya SrInivAsAya tE nama: Siva-BrahmAdhi vandhyAya SrInivAsAya tE nama: PraNathArTi-vinAsAya SrInivAsAya tE nama: Dhushta rAkshasa samharthrE SrInivAsAya tE anama: BhakthAnAm pApa samharthrE SrInivAsAya tE anma”
–Excerpts from SkAndha PurANam
Translation: Here the Salutations is to the destroyer of all Paapams(sins), who is worshipped by Siva and Brahma and who resides on top of the NaarAyaNadhri and SeshAdhri.