Brihat Parashara Hora Shastra
सौम्याः केन्द्रत्रिकोणस्थाः पापास्त्र्यायारिगास्तथा । शुभराशौ स्थिते रन्ध्रे दिव्यमायुस्तदा भवेत् ॥ ५६॥
Super-Natural Longevity. One having benefics in Kendras and/or Konas, while malefics are in Sahaj, Ari and Labh Bhava will obtain supernatural life-span. Randhr Bhava in this case should be one of the Rāśis, owned by a benefic.
english translation
saumyAH kendratrikoNasthAH pApAstryAyArigAstathA । zubharAzau sthite randhre divyamAyustadA bhavet ॥ 56॥
hk transliteration by Sanscript