From the wall of Muhammad Imran
Saturn+Mars in 7th Cancer (as per Phaladīpikā)
His comment-The crux of the combination is, lordship is more important than mere natural maleficence of the planet.
My explanation- Note - Let us examine why the result is as attributed by Mantershwara in Phaldeepika Sutra 3 of Chapter 10 on Kalatar Bhava.
Saturn is lord of ascendant and 2nd here, Mars owns the 4th and 11th ( a Trishadya),7th lord moon becomes the sign placement lord of both Saturn and Mars. A point worth noting is that all the planets here own a Kendra, As per Prashari concept a Kendra lord in Kendra if malefic will behave more like a neutral planet and shed away the malefic intent, both Mars and Saturn are Malefics both own a Kendra Both are in a female sign, the sign lord is also female planet here moon, The Lagna lord Saturn also owns a female sign the Capricorn. Further classical text opines that chastity of the woman is seen from her fourth house in the male native's horoscope it will be the 10th house here its lord is a Venus again a Kendra lord and female planet.
I feel that Naturally malefic planets which are inimical to each other under the house rulership of the 7th lord moon will rather project the traits of the 7th house because being malefic and Kendra lords they shed away the malefic intent and behave like a neutral.
From the point of aspects, this placement of Saturn and Mars ensures aspects to all Kendra's and to the Mool Trikona Rashi's of each other, Saturn aspects 9th,4th and ascendant, Mars 10th, ascendant and 2nd.
Reversing the horoscope from the point of view of the wife, The Lagna becomes Karka Saturn and Mars are in Lagna and assuming the Lagna to be Karka ( cancer ) Saturn is the lord of 7th,8th, Mars owns the 10th and 5th. Saturns placement in Kendra sign here in ascendant from wife's Lagna and with a Yogyakarta Mars will create positive results for the bhava here, the 7th as it will aspect its own sign while being related to a Yoga karaka. ( Laghu Prashari says that a malefic related to yoga Karka gives good result ) The consideration of the bhava representing a relative as Lagna is also given in Phaldeepika itself.
Aspects -Saturn gives Bhav Bala to its own 7th house while a yoga karaka Mars aspects the 4th house, the house representing chastity of woman, the 7th and 8th house. Saturn is placed adversely from its 8th house here being 12th from it so the 8th house significations including the illicit relations or extramarital relations etc are ruled out altogether.