The first foals of Classic winners Bosra Sham and Lady Carla will be offered at the Tattersalls Houghton Yearling Sales this autumn.
The colts, by Rainbow Quest and Gone West respectively, are bound to attract plenty of interest from buyers.
Tim Bulwer-Long, racing manager to Wafic Said's Addison Racing, said today: "We had a five-year plan to acquire top-class female pedigrees.
"This has been completed and we have decided that our policy will now be to sell the male progeny of our best mares.
"Every operation has to have a commercial aspect to it.
"They will be sold by the Watership Down Stud as agent for Addison Racing."
Bosra Sham carried Wafic Said's colours to victory in the 1996 1000 Guineas and Champion Stakes, while Lady Carla won that year's Oaks for the same owner.
