Brihat Parashara Hora Shastra
बुधेज्यौ बलिनौ पूर्वे रविभौमौ च दक्षिणे। पश्चिमे सूर्यपुत्रश्च सितचन्द्रौ तथोत्तरे॥ ३५॥
Strengths of Grahas. Strong in the East are Budh and Guru. Sūrya and Mangal are so in the South, while Śani is the only Grah, that derives strength in the West. Candr and Śukr are endowed with vigour, when in the north.
english translation
budhejyau balinau pUrve ravibhaumau ca dakSiNe। pazcime sUryaputrazca sitacandrau tathottare॥ 35॥
hk transliteration by Sanscript