Brihat Parashara Hora Shastra
सुखेशसहितस्यापि धर्मेशस्य दशा शुभा । पञ्चमस्थानगस्यापि मानेशस्य दशाशुभा ॥ ११॥
The planetary period (Dasha) of the lord of the 9th house (Dharmesha), when associated with the lord of the 4th house (Sukhesha), brings good fortune (Shubha). Similarly, the period of the lord of the 10th house (Manesha), even when situated in the 5th house (Panchama Sthana), brings auspicious results (Auspicious Dasha).
english translation
sukhezasahitasyApi dharmezasya dazA zubhA । paJcamasthAnagasyApi mAnezasya dazAzubhA ॥ 11॥
hk transliteration by Sanscript