Shiva Purana

siva.sh/siva-purana/kotirudra-samhita/13/11

तत्रत्यश्च तदा शंभुं ध्यात्वा संप्रार्थयत्तदा ।। अन्तकाले च त्वां दृष्ट्वा तादृशो भवति क्षणात् ।। ११ ।।

sanskrit

Remaining there he meditated on Śiva and prayed—“On seeing you at the hour of death, one becomes identical with you instantaneously.”

english translation

tatratyazca tadA zaMbhuM dhyAtvA saMprArthayattadA || antakAle ca tvAM dRSTvA tAdRzo bhavati kSaNAt || 11 ||

hk transliteration by Sanscript