Paraśurāma advised by Brahmā to approach Śiva about Haihaya - Verse 36
Brahmanda Purana (GRETIL / Wisdomlib) · 31 · Verse 36
Sanskrit Original
उपायं कुरु यत्नेन जयबीजं शुभावहम। उपाये तु समारब्धे सर्वे सिध्यन्त्युपक्रमाः।।
upāyaṃ kuru yatnena jayabījaṃ śubhāvaham| upāye tu samārabdhe sarve sidhyantyupakramāḥ||
Vasiṣṭha continued;: Your vow will be non-futile on account of this early law of the Universe. Or if you think that you are to achieve your object with your own endeavour, go to Śiva’s world and take the permission of Śiva. On the Earth there are many kings who are the followers of Śaṅkara. Without the permission of the great god who is powerful enough to kill them as they wear the coat of Mail, have Śaktis (divine javelins) inaccessible to others. Strive to attain the seed of victory conducive to happiness. If the right means is to be used all endeavours become successful.