Rig Veda 10.72.6

Sanskrit text [Accents, Plain, Transliterated]:

यद्दे॑वा अ॒दः स॑लि॒ले सुसं॑रब्धा॒ अति॑ष्ठत । अत्रा॑ वो॒ नृत्य॑तामिव ती॒व्रो रे॒णुरपा॑यत ॥
यद्देवा अदः सलिले सुसंरब्धा अतिष्ठत । अत्रा वो नृत्यतामिव तीव्रो रेणुरपायत ॥
yad devā adaḥ salile susaṃrabdhā atiṣṭhata | atrā vo nṛtyatām iva tīvro reṇur apāyata ||

English translation:

“When, goeds, your abode in this pool well-arranged, then a pungent dust went forth from you as if youwere dancing.”

Commentary by Sāyaṇa: Ṛgveda-bhāṣya

Your abode in this pool: i.e., when the world was, yet water (āpo vā idam sarvam: TaittirīyaĀraṇyaka: 10.22), as it was before creation, and the gods were, properly speaking, uncreated;

Dust: or,particle, this refers to the sun mounting into the sky

Details:

Ṛṣi (sage/seer): bṛhaspatirbṛhaspatirvā laukya aditirvā dākṣāyaṇī;
Devatā (deity/subject-matter): devāḥ ;
Chandas (meter): anuṣṭup ;
Svara (tone/note): Swar;

Padapatha [Accents, Plain, Transliterated]:

यत् । दे॒वाः॒ । अ॒दः । स॒लि॒ले । सुऽसं॑रब्धाः । अति॑ष्ठत । अत्र॑ । वः॒ । नृत्य॑ताम्ऽइव । ती॒व्रः । रे॒णुः । अप॑ । आ॒य॒त॒ ॥
यत् । देवाः । अदः । सलिले । सुसंरब्धाः । अतिष्ठत । अत्र । वः । नृत्यताम्इव । तीव्रः । रेणुः । अप । आयत ॥
yat | devāḥ | adaḥ | salile | su-saṃrabdhāḥ | atiṣṭhata | atra | vaḥ | nṛtyatām-iva | tīvraḥ | reṇuḥ | apa | āyata

Multi-layer Annotation of the Ṛgveda

[Rigveda 10.72.6 English analysis of grammar]