Brihat Parashara Hora Shastra
गुरुणा संयुते भाग्ये तदीशे केन्द्रराशिगे । विंशद्वर्षात् परं चैव बहुभाग्यं विनिर्दिशेत् ॥ २७॥
Fortunate Periods. Abundant fortunes be acquired after the 20th year, if Dharm has Guru in it, as its Lord is in an angle from Lagn.
english translation
guruNA saMyute bhAgye tadIze kendrarAzige । viMzadvarSAt paraM caiva bahubhAgyaM vinirdizet ॥ 27॥
hk transliteration by Sanscript