Skandapurana 5.247.9

5.247.9

yasya mūle haro nityaṃ skaṃdhe śūladharaḥsvayam ..
śākhāsu bhagavānrudraḥ puṣpeṣu tripurāṃtakaḥ .. 9 ..

at whose root Hara constantly dwells, and the trident-bearer himself in the trunk; / the Blessed Lord Rudra is in the branches, the destroyer of Tripura in the flowers;