law: Indian Trusts Act, 1882 
  22. Sale by trustee directed to sell within specified time
  
   
  Where a trustee directed to sell within a specified time extends
  
  such time, the burden of proving, as between himself and the beneficiary, that
  
  the latter is not prejudiced by the extension lies upon the trustee, unless the
  
  extension has been authorized by a principal civil court of original
  
  jurisdiction.
  Illustration 
  A bequeaths property to B, directing him with all convenient speed and within five years to sell it, and apply the proceeds for the benefit of C. In the exercise of reasonable discretion, B postpones the sale for six years. The sale is not thereby rendered invalid, but C, alleging that he has been injured by the postponement, institutes a suit against B to obtain compensation. In such suit the burden of proving that C has not been injured lies on B.