Mahabharata 14.38.9

मुधा दानं मुधा यज्ञो मुधाधीतं मुधा व्रतम्मुधा प्रतिग्रहश्चैव मुधा धर्मो मुधा तपः

mudhā dānaṃ mudhā yajño mudhādhītaṃ mudhā vratammudhā pratigrahaścaiva mudhā dharmo mudhā tapaḥ

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