The Manu named King Satyavrata formerly saved himself by tying the small boat of the entire world to the horn of the Matsya avatāra, the fish incarnation. By the grace of the Matsya avatāra, Manu saved himself from the great danger of the flood. May that same fish incarnation save us from the great and fearful danger caused by the son of Tvaṣṭā.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
यस्योरुशृङ्गे जगतीं स्वनावं मनुर्यथाऽऽबध्य ततार दुर्गम् । स एव नस्त्वाष्ट्रभयाद्दुरन्ता- त्त्राताऽऽश्रितान् वारिचरोऽपि नूनम्
yasyoruśṛṅge jagatīṃ svanāvaṃ manuryathā''badhya tatāra durgam | sa eva nastvāṣṭrabhayāddurantā- ttrātā''śritān vāricaro'pi nūnam
SB 6.9.23