Rig Veda 1.18.9

Sanskrit text [Accents, Plain, Transliterated]:

नरा॒शंसं॑ सु॒धृष्ट॑म॒मप॑श्यं स॒प्रथ॑स्तमम् । दि॒वो न सद्म॑मखसम् ॥
नराशंसं सुधृष्टममपश्यं सप्रथस्तमम् । दिवो न सद्ममखसम् ॥
narāśaṃsaṃ sudhṛṣṭamam apaśyaṃ saprathastamam | divo na sadmamakhasam ||

English translation:

“I have beheld Nārāśaṃsa (i.e. Agni or the person nified yajña or sacrifice at which men praise the gods), the most resolute, the most renowned, and radiant as the heavens.”

Commentary by Sāyaṇa: Ṛgveda-bhāṣya

'I beheld (with the eye of the Vedas) that divinity Sadasaspati, who is to be praised by men, who is also called Narāśaṃsa' (Aitareya Brāhmaṇa 6.27)

Details:

Ṛṣi (sage/seer): medhātithiḥ kāṇvaḥ [medhātithi kāṇva];
Devatā (deity/subject-matter): sadasaspatirnarāśaṃso vā ;
Chandas (meter): gāyatrī;
Svara (tone/note): Swar;

Padapatha [Accents, Plain, Transliterated]:

नरा॒शंस॑म् । सु॒धृष्ट॑मम् । अप॑श्यम् । स॒प्रथः॑ऽतमम् । दि॒वः । न । सद्म॑ऽमखसम् ॥
नराशंसम् । सुधृष्टमम् । अपश्यम् । सप्रथःतमम् । दिवः । न । सद्ममखसम् ॥
narāśaṃsam | sudhṛṣṭamam | apaśyam | saprathaḥ-tamam | divaḥ | na | sadma-makhasam

Multi-layer Annotation of the Ṛgveda

[Rigveda 1.18.9 English analysis of grammar]