Matsya Purana 180.91

180.91

apaśyat sagaṇaṃ devaṃ vṛṣadhvajamupasthitam.
devadeva uvāca.
varaṃ dadāmi te pūrvaṃ trailokye darśanaṃ tathā .. 180.91 ..

"All beings seek comforts and enjoyments and kingdoms during lifetime and emancipation after death" Hearing such words of Pârvatî the Lord approached the Yaksha who saluted him The Lord then granted him Divine vision when he was able to behold the Lord with all His attendants and was highly pleased Then the Lord said "I am granting you a boon by virtue of which you will see the three realms, and your body will also become like Mine Look at Me, being free from any grief or trouble"—88-90