Vasumati or Vasuman yoga is formed when all the benefic planets (Jupiter, Venus, and Mercury) occupy the Upachaya houses (They are 3rd house, 6th house, 10th house, and 11th house) from the Moon. Vasumati yoga can also be produced when all the benefic planets including the waxing Moon are placed in Upachaya houses from the ascendant.
Vasumat means wealthy, rich, and also beautiful. It is one of the strong Dhana yoga. If yoga manifests strongly, the native amasses enormous wealth. Upachaya houses are the houses of expansion. It indicates expansion, growth, improvement in materialistic pursuit. Any planets in Upachaya houses produce good results, more so with benefic planets. Upachaya houses are 3,6,10 and 11 houses. Here 3rd and 11th houses are from Kama trikona (trine) and the 6th and 10th houses are from Artha trikonas. Dharma and Moksha houses do not appear in Upachaya houses. So we can see that Upachaya houses are related to wealth, passion, desires, growth, success. So Vasumati yoga is all about wealth and success.
The native will be extremely wealthy, very courageous, and enjoy comforts. He will earn wealth through his own efforts, he will be successful in business, live with all the comforts in life, will be handsome and beautiful. If the planet in that Upachaya house happens to be the exaltation point, then the Yoga produces very powerful results. It can destroy other daridra yoga in the horoscope.
तिष्ठेयु: स्वगृहॆ सदा वसुमति द्रव्याण्यनल्पान्यपि ।
क्षमॆश: स्यादमलॆ धनि सुतयश: सपद्युतॊ नीतिमान् ।
The person with Vasumati yoga will always remain in his house, and he will be very wealthy.