Matsya Purana — Ila–Sudyumna Episode and the Expansion of the Ikṣvāku
इक्ष्वाकोरश्वमेधेन यत्फलं स्यात्तदावयोः दत्त्वा किम्पुरुषो वीरः स भविष्यत्यसंशयम् //
ikṣvākoraśvamedhena yatphalaṃ syāttadāvayoḥ dattvā kimpuruṣo vīraḥ sa bhaviṣyatyasaṃśayam //
Whatever merit is obtained by Ikṣvāku through the Aśvamedha sacrifice—by giving in this manner, that very fruit will accrue to us. Indeed, after giving, the heroic giver will surely become a Kiṃpuruṣa, without doubt.
This verse does not discuss pralaya; it focuses on puṇya (religious merit) gained through giving, comparing it to the famed Aśvamedha sacrifice of Ikṣvāku.
It elevates dāna (charitable giving) as a central duty: the merit of great royal rituals like Aśvamedha can be matched by proper giving, encouraging rulers and householders to prioritize generosity as dharma.
The ritual reference is the Aśvamedha (horse-sacrifice), used as a benchmark for merit; no Vāstu or temple-architecture rule appears in this verse.