Skandapurana 2.4.11.195

2.4.11.195

bhaginyāḥ mahattvaṃ kena kāraṇena asti. asmin saṃdarbhe purāṇe kathanamasti yat kanyā tamoguṇī asti, jāyā rajoguṇī evaṃ bhaginī sattvaguṇī(bhaviṣya 3.4.18.24). etāni prakṛteḥ guṇāni santi.

For what reason is there greatness of a sister? In this context, it is stated in the Purāṇa that an unmarried daughter possesses the quality of darkness (tamoguṇa), a wife possesses the quality of passion (rajoguṇa), and a sister possesses the quality of goodness (sattvaguṇa) (Bhaviṣya Purāṇa 3.4.18.24). These are the qualities of material nature.