Skandapurana 6.3.51.34

6.3.51.34

prājāpatyaṃ tu pāṭhādyaṃ śivapuṣpaṃ tu vāsanā .
ahiṃsā prathamaṃ puṣpaṃ puṣpamindriyanigrahaḥ .. 51.34 ..

the Prajāpati-related consists of recitation and the like; and the flower of Śiva is residual impression.
Non-violence is the first flower; the restraint of the senses is a flower;