देवकार्ये तथा ग्राह्यास्थिति ऋक्षादिकाः शुभाः । सम्यग्विचार्य वारादीन्कुर्यात्पूजाजपादिकम् २८ ।
For divine work, the positions of the Riksha (Ursa Major) and other constellations are considered auspicious. After proper deliberation, one should perform worship, chanting, and other related rituals on the specific weekdays (vāra).