Vishnupurana 4.15.2

4.15.2

na layaṃ tatra tenaiva nihataḥ sa kathaṃ punaḥ
saṃprāptaḥ śiśupālatve sāyujyaṃ śāśvate harau //

MAITREYA.--Most eminent of all who cultivate piety, I am curious to hear from you, and you are able to explain to me, how it happened that the same being who when killed by Vishńu as Hirańyakaśipu and Rávańa obtained enjoyments which, though scarcely attainable by the immortals, were but temporary, should have been absorbed into the eternal Hari when slain by him in the person of Śiśupála.