Please refer the following link for vasuman ati and vasuman yoga...

http://vedic.indastro.com/learn-astrology/yoga-ascendant.php

I have recently come across this yoga and have never heard anyone talk about it other than this instance

"If all the three benefics, Mercury, Jupiter and Venus are tin Upachaya houses (i.e. the third, sixth, tenth and eleventh from the ascendant), the Yoga is called Ati-vasuman."

Is this a relatively uncommon yoga?

What about retrograde planets forming this yoga?

Also, eg. cancer ascendant, if jupiter is in 3rd house....maranakaraka sthana....it would obviously reduce the significance of this yoga (or jupiter conjunct saturn in the same case will reduce the significance again...though the above website claims otherwise....i want to contest that)

I know that there might be a number of other factors affecting...but maybe we can come to those later....

Vasumati Yoga is about getting Laksmis blessings and bounty wihout hurting, even winning in compettions where one has not hurt others, due to the winning. It is a yoga of exellance in qualities, and luck.

This attracts great/big time God's grace as no onne is hurt.

Saturn and Jupiter in the 3rd adulterates the not hurting factor.  Jupiter in Marankaraka place affects true wisdom, but probably not too much. Vasumathi Yoga is an yoga of purity and wisdom with excellance with satyayuga factors.

This is not read from books, but from simple logic. The explanation and understanding is important.

RishiRahul

Dear tulanandi,
As mentioned by you vasumati yoga is formed when all 4 benefics occupy upachaya sthans from lagna or from moon.But it is said that this yoga is more powerful if formed from lagna rather than moon position.More than anything else it is believed to effect majorly the wealth part in the native.

The native is beilieved  to be not a dependable but is supposed to enjoy plenty of money.Varahmihira also said that this yoga is very powerful can be consider alone for wealth factor.

Though when we consider this yoga from moon we are left with only 3 benefics, thus all four upachaya stahns cannot be occupied.
This is why it is more dependable to consider this yoga from lagna.Though we have to judge this yoga depedng upon basic strength of the planets invloved but over all this yoga is considered to show its effect whenever it is present.

This yoga is quite rare coz it will seldom happen if all 4 upachaya sthans are occupied with benefics without any influence of any malefics.

About presense of retrograde planet in this yoga .Definetely the whole effect of this yoga will get affected(generally the negative side)and  will get further delayed.Now since  this yoga is mainly considered for wealth thus accusation of plenty of Wealth will get affected and can go on opposite depending upon the combination.

Regards,
Raman