Mahabharata 12.128.37

अकार्यमपि यज्ञार्थं क्रियते यज्ञकर्मसुएतस्मात्कारणाद्राजा न दोषं प्राप्तुमर्हति

akāryamapi yajñārthaṃ kriyate yajñakarmasuetasmātkāraṇādrājā na doṣaṃ prāptumarhati

Our plain-language meaning of this verse is waiting for scholar review.