Private debuttar trust property having irrevocable clause in trust deed

The distinction between a private and a public trust is that whereas in the former, the beneficiaries are specific individuals, in the latter, they are the general public or a class thereof. While in the former the beneficiaries are persons who are ascertained or capable of being ascertained, in the latter they constitute a body which is incapable of ascertainment.”
Supreme court judgment

PETITIONER: PROFULLA CHORONE REQUITTE & ORS. Vs. RESPONDENT: SATYA CHORONE REQUITTE DATE OF JUDGMENT02/03/1979 BENCH: SARKARIA, RANJIT SINGH BENCH: SARKARIA, RANJIT SINGH TULZAPURKAR, V.D.

Respected Sir,

                I require relevant judgement that private debuttar trust property having irrevocable clause cannot be sold for personal benefit without consent of court. But going through said judgement i could not find any such paragraph . Please help