Narapatijayacarya 4.20

4.20

ravicandrarāhuketūnāṃ gatereka svabhāvatvāttisṛbhireva ṭṭaṣṭibhirvāmasamsukhadakṣiṇābhirete catvāraḥ sadā paśbhanni | krūrā iti | krūrāḥ pāpagrahā vakragayaḥ santo mahākrūrāḥ | sautyāḥ śubhaśvaśāvena kurvanti | kintu vakrāḥ santo yathātiśubhaṃ kurvani tathā na | eva kruśaḥ śīghragāḥ svasvasvabhāvena sthitā bhavanti ||

because of the singular nature of the motion of the Sun, Moon, Rāhu, and Ketu, these four always look with all three gazes—left, direct, and right. "krūrāḥ..." Malefic planets being retrograde are exceedingly malefic. Benefics act according to their auspicious nature; however, being retrograde, they do not act as exceedingly auspicious. In this manner, malefics moving swiftly remain in their own respective natures.