Byasanasutta 2.5

2.5

Sīlasampadāhetu vā, bhikkhave, sattā diṭṭhisampadāhetu vā kāyassa bhedā paraṃ maraṇā sugatiṃ saggaṃ lokaṃ upapajjanti.

It is because of endowment with ethics or view that sentient beings, when their body breaks up, after death, are reborn in a good place, a heavenly realm.