Bhagavatapurana 5.24.1

5.24.1

/0 śrī-śuka uvāca
adhastāt savitur yojanāyute svarbhānur nakṣatravac caratīty eke yo 'sāv amaratvaṃ grahatvaṃ cālabhata bhagavad-anukampayā svayam asurāpasadaḥ saiṃhikeyo hy atad-arhas tasya tāta janma karmāṇi copariṣṭād vakṣyāmaḥ //

1. Sri Suka said:—Tenthousand yojanas below the Sun, some say, Rahu makes his circuit in the form of a Nakshatra (planet); for, he attained immortality and became a planet through the grace of the Lord, though he was by nature a wicked asura, born of Simhika, and by nature unworthy of that attainment; and of his birth and deed, O Son, we shall tell you later on.