Rig Veda 8.72.8

Sanskrit text [Accents, Plain, Transliterated]:

आ द॒शभि॑र्वि॒वस्व॑त॒ इन्द्र॒: कोश॑मचुच्यवीत् । खेद॑या त्रि॒वृता॑ दि॒वः ॥
आ दशभिर्विवस्वत इन्द्रः कोशमचुच्यवीत् । खेदया त्रिवृता दिवः ॥
ā daśabhir vivasvata indraḥ kośam acucyavīt | khedayā trivṛtā divaḥ ||

English translation:

“Invoked by the ten (fingers) of the worshipper, Indra has caused the cloud to fall from heaven by histhree-fold ray.”

Commentary by Sāyaṇa: Ṛgveda-bhāṣya

The ten: the fingers are called the ten sisters in RV 3.29.13;

Indra = Agni or Āditya; three-foldray: khedayā trivṛtā: khedayā = raśminā;

Trivṛtā = tri prakāravartanavatā, revolving in three ways;khedayā (RV 8.77.3) = rajjvā

Details:

Ṛṣi (sage/seer): haryataḥ prāgāthaḥ [haryata prāgātha];
Devatā (deity/subject-matter): agnirharvīṣi vā ;
Chandas (meter): gāyatrī;
Svara (tone/note): Swar;

Padapatha [Accents, Plain, Transliterated]:

आ । द॒शऽभिः॑ । वि॒वस्व॑तः । इन्द्रः॑ । कोश॑म् । अ॒चु॒च्य॒वी॒त् । खेद॑या । त्रि॒ऽवृता॑ । दि॒वः ॥
आ । दशभिः । विवस्वतः । इन्द्रः । कोशम् । अचुच्यवीत् । खेदया । त्रिवृता । दिवः ॥
ā | daśa-bhiḥ | vivasvataḥ | indraḥ | kośam | acucyavīt | khedayā | tri-vṛtā | divaḥ

Multi-layer Annotation of the Ṛgveda

[Rigveda 8.72.8 English analysis of grammar]