Phaladeepika
यदि केन्द्रे त्रिकोणे वा निवसेतां तमोग्रहौ । नाथेनान्यतरस्यैव संबन्धाद्योगकारकौ ॥ ५२॥
If Rahu and Ketu should be posited in a Kendra or Trikona they and become Yogakarakas, i.e., instrumental in (doing) bringing about good to the native if they are connected ( XV-30, supra) with the lord of one of these Kendra and Trikona'.
english translation
yadi kendre trikoNe vA nivasetAM tamograhau । nAthenAnyatarasyaiva saMbandhAdyogakArakau ॥ 52॥
hk transliteration by Sanscript