Explanation:

- Section 41 of the Transfer of Property Act, 1882: This section deals specifically with transfers done voluntarily by the owner, focusing on bona fide transactions without fraud or coercion.

- Option 1: Court sale:

- Court sales are involuntary as they occur by order of the court, often in judicial proceedings.

- Correct Answer: Section 41 does not apply to involuntary transfers like court sales.

- Option 2: Contingent sale:

- Sales dependent on specific conditions being met. Still voluntary unless conditions create coercive circumstances.

- Option 3: Perpetuity sale:

- Refers to agreements with perpetual consequences, not necessarily involuntary.

- Option 4: Price less sale:

- Unclear term legally; could indicate charitable or nominal consideration transactions but still voluntary.