Naradapurana 1.113.21

Nāradapurāṇa 1.113.21

ācāryāya vidhijñāya satkṛtya vinivedayet /
upahāraṃ prakalpyātha dadyādarghaṃ samudyate /
tataḥ saṃprārathya vighneśamūrtiṃ sopaskarāṃ mune //