Brihat Parashara Hora Shastra
पदाद्दारपदे चैवं केन्द्रे कोणे च संस्थिते । द्वयोर्मैत्री भवेन्नूनं त्रिके वैरं न संशयः ॥ ३४॥
If Lagn Pad and Dar Pad are mutually in Kendras, or Konas, there will be amity between the couple. If these be in mutually 6th/8th/12th, doubtlessly mutual enmity will crop up.
english translation
padAddArapade caivaM kendre koNe ca saMsthite । dvayormaitrI bhavennUnaM trike vairaM na saMzayaH ॥ 34॥
hk transliteration by Sanscript