Jayantī–Kāvyā (Śukra) Saṃvāda: Varadāna and the Ten-Year Concealment
यज्ञे पुनः पुनर्विष्णुर्यज्ञे ऽथ शिथिले प्रभुः / कर्तुं धर्मव्यवस्थान मधर्मस्य प्रणाशनम्
yajñe punaḥ punarviṣṇuryajñe 'tha śithile prabhuḥ / kartuṃ dharmavyavasthāna madharmasya praṇāśanam
In the sacrifice (yajña), Viṣṇu manifests again and again; and when the yajña grows slack, the Lord comes to establish the order of dharma and to destroy adharma.