Rishi: Yājñavalkya-tradition (Śukla-Yajurvedic Adhvaryu lineage; specific ṛṣi attribution not explicit in the provided excerpt).
Devata: Agni Gṛhapati (Agni as Lord of the House; specifically the Gārhapatya aspect).
Chandas: Yajus (prose formula with rhythmic cola; not a fixed Ṛgvedic metre).
Samhita Patha (Devanagari)अग्ने॑ गृहपते सुगृहप॒तिस्त्वया॑ग्ने॒ऽहं गृ॒हप॑तिना भूयासᳪ सुगृहप॒तिस्त्वं मया॑ऽग्ने गृ॒हप॑तिना भूयाः । अ॒स्थू॒रि णौ॒ गार्ह॑पत्यानि सन्तु श॒तᳪ हिमा॒: सूर्य॑स्या॒वृत॒मन्वाव॑र्ते
Transliterationágnē gṛhapatē sugṛhapatís tváyāgnē ’háṃ gṛhápatinā bhūyāsaṃ sugṛhapatís tváṃ máyāgnē gṛhápatinā bhūyāḥ | ásthūri nau gārhapatyā́ni santu śatáṃ himā́ḥ sū́ryasyā́vṛtám ánvāvartē
Translationহে অগ্নি, গৃহপতে! তোমাৰ সৈতে, হে অগ্নি, মই সুগৃহপতি হৈ গৃহপতি হওঁ। মোৰ সৈতে, হে অগ্নি, তুমিও সুগৃহপতি হৈ গৃহপতি হওঁ। আমাৰ দুজনৰ বাবে গাৰ্হপত্যৰ বস্তুসমূহ অখণ্ড থাকক; শত হিমা পৰ্যন্ত সূৰ্যৰ আবর্তন-পথ অনুবর্তী হৈ ঘূৰি আহে।
Padapatha (Word Analysis)अग्ने । गृह-पते । सु-गृह-पतिः । त्वया । अग्ने । अहम् । गृह-पतिना । भूयासम् । सु-गृह-पतिः । त्वम् । मया । अग्ने । गृह-पतिना । भूयाः । अ-स्थूरि । नौ । गार्ह-पत्यानि । सन्तु । शतम् । हिमाः । सूर्यस्य । आवृतम् । अनु-आ-वर्ते
Word by WordगृहपतेO lord of the house सुगृहपतिःa good house-lord गृहपतिनाas/with (the status of) house-lord सुगृहपतिःa good house-lord गृहपतिनाas/with (the status of) house-lord अस्थूरि(let there be) an unbroken/firm foundation (lit. a firm spreading/bed) गार्हपतानि(things) belonging to the Gārhapatya (household fire) आवृतम्the turning/returning (course); the circuit आवर्ततेturns/returns; revolves 
Entities MentionedA
Agni Gṛhapati (Gārhapatya Agni) Viniyoga (Ritual Application) 