Rudra Gayatri Mantra:-

ॐ तत्पुरुषाय विद्महे महादेवाय धीमहि
तन्नो रुद्रः प्रचोदयात्॥

Om Tatpurushaya Vidmahe Mahadevaya Dhimahi
Tanno Rudrah Prachodayat॥

Rudra Gayatri Mantra Meaning:-

I pray to the mightiest of the Gods, the ideal Purusha, Mahadev. Bless me with the intellect and enlighten me with knowledge.