Phaladeepika
आत्मसम्बन्धिनो ये च ये ये निजसर्धामिणः । तेषामन्तर्दास्वेव दिशन्ति स्वदशाफलम् ॥ ४४॥
Find what all planets are related (vide XV-30 supra) to the particular planet whose Dasa is under consideration. Note also the planets if any which are similarly circumstanced (whether for good or bad), 1. e., holding a position co-ordinate to the one under reference. It is only in the Antardasas or Bhuktis of these planets that this original planet will in his main Dasa manifest his effect.
english translation
Atmasambandhino ye ca ye ye nijasardhAmiNaH । teSAmantardAsveva dizanti svadazAphalam ॥ 44॥
hk transliteration by Sanscript