Brihat Samhita
केतुकुजराहुशुक्रा यायिन एते हता घ्नन्ति । आक्रन्दयायिपौरान्जयिनो जयदाः स्ववर्गस्य ॥ १७-०७ ॥
Ketu, Mars, Rahu and Venus are known as Yāyin planets. The planet that suffers defeat in conjunction will cause suffering to the objects it represents; but if triumphant, the objects will prosper.
english translation
ketukujarAhuzukrA yAyina ete hatA ghnanti । AkrandayAyipaurAnjayino jayadAH svavargasya ॥ 17-07 ॥
hk transliteration by Sanscript