The lord of the 6th house in the 9th house of the horoscope

The ruler of the 6th house in the 9th house. Good health, good work, help from an uncle, a religious uncle, honest workers, good tenants and employees. Friction with the father, a sickly father, the father is connected with medicine, a poor fate, no satisfaction from religion and philosophy, no faith, no help from the Guru. (James Braha)

The lord of the 6th house in the 9th house. Mutual misunderstanding in relations with the father, instability in the observance of religious rites, frequent journeys abroad, hostile relations with authority. (Tom Hopke)

The lord of the 6th house in the 9th house: an unstable career; the person's financial condition and life undergo strong fluctuations. The father administers justice and achieves everything in life himself, however he is often ill and is ill-disposed towards the person. (Shri G.S. Agarwal)

BPHS 26:69. If the ruler of the 6th bhava is placed in the 9th bhava, the native will trade in timber and stones <or poisons> and will encounter instability in trade <in his profession>.

Comments: Whenever the 6th and the 9th bhavas are connected with each other in any way, there will be frequent rises and falls in the native's fortune and well-being, since the 6th bhava is the bhava of misfortunes, and the 9th bhava is the bhava of fortune.

(“Brihat Parashara Hora Shastra”)