Skandapurana 7.13.p44

7.13.p44

sanatkumāra uvāca
tataste tantathā22 dṛṣṭvā yuyujurbhūya eva ca .
hṛdayaṃ jajapuścaiva rudrāṇāṃ yuktamānasāḥ . .3 3 . .
athāgād bhagavāndevaḥ śūlapāṇirvṛṣadhvajaḥ .
uvāca devān tuṣṭosmi brūta yadvobhikāṃkṣitam23 . .34. .

Sanatkumāra said:
Then, seeing it thus, they again applied themselves [in yoga]
and chanted the Rudrahṛdaya with concentrated minds. // 33
Then the blessed god, trident in hand, whose emblem is the bull, arrived
and said to the gods: "I am pleased; speak of what you desire." // 34