Brihat Parashara Hora Shastra
स्वस्थाने स्वांशके वाऽपि मित्रेशे मित्रमन्दिरे । दीर्घायुषं करोत्येव लग्नेशोऽष्टमपः पुनः ॥ ५॥
If the Lords of Putr, Randhr and Tanu Bhava are in own Navāńśas, own Rāśis, or in friendly Rāśis, the native will enjoy a long span of life.
english translation
svasthAne svAMzake vA'pi mitreze mitramandire । dIrghAyuSaM karotyeva lagnezo'STamapaH punaH ॥ 5॥
hk transliteration by Sanscript