Jataka Tattva · by Mahadeva
Chapter 9 · Marriage: the 7th House
सप्तमविवेकः
दारेशे केन्द्रे शुभांशे शुभदृष्टयुते धर्मशीला पतिव्रता ।
Say the 7th lord is in the 1st, 4th, 7th or 10th house. It is in a good planet's navamsha (one-ninth part of a sign). Good planets join it or aspect it. Then the wife is religious and devoted to her husband.
दारे गुरुदृष्टे सुशीला स्त्री ।
Say Jupiter aspects the 7th house. Then the wife is of good character.
अंशादारे राहौ गृहे स्त्री विधवा ।
Count from the navamsha (one-ninth part of a sign) of the atmakaraka (the planet that stands for the self). Say Mars and Rahu are in the [7th] house…
षष्ठाष्टाङ्केशाः सपापाः पापदृष्टाः स्त्री जारिणी ।
Say the lords of the 6th, 8th and 9th houses are joined with bad planets. Bad planets also aspect them. Then the wife is unfaithful.