Brihat Jataka
मध्ये वयस: सुखप्रद: केन्द्रस्था गुरुजनमलग्नपा: ॥ पृष्ठोभयकोदयर्क्षगस्त्वन्तेऽन्त: प्रथमेषु पाकदा ॥ २२-५ ॥
Jupiter or the lord zodiac sign occupied by the Moon or the lagna situated in angles, those bestow happiness when in the middle of the prime of life.
english translation
madhye vayasa: sukhaprada: kendrasthA gurujanamalagnapA: ॥ pRSThobhayakodayarkSagastvante'nta: prathameSu pAkadA ॥ 22-5 ॥
hk transliteration by Sanscript