AVŚ 19.17.5
सूर्यो मा द्यावापृथिवीभ्यां प्रतीच्या दिशः पातु तस्मिन् क्रमे तस्मिं छ्रये तां पुरं प्रैमि । स मा रक्षतु स मा गोपायतु तस्मा आत्मानं परि ददे स्वाहा ॥५॥
sūryo mā dyāvāpṛthivībhyāṃ pratīcyā diśaḥ pātu tasmin krame tasmiṃ chraye tāṃ puraṃ praimi | sa mā rakṣatu sa mā gopāyatu tasmā ātmānaṃ pari dade svāhā ||5||
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
Let the sun with heaven-and-earth protect me from the western quarter: in him I etc. etc.
Translated by William Dwight Whitney (1905)