Mīmāmsa Sūtra 01.01.02

चोदनालक्षणोऽर्थो धर्मः ॥२॥

codanālakṣaṇo'rtho dharmaḥ ॥2॥

[चोदना (codanā) - The act of impelling, urging, or inciting, injunction; लक्षणः (lakṣaṇaḥ) - characterized by; अर्थः (arthaḥ) - object; धर्मः (dharmaḥ) - dharma;]

(The object characterized by impelling is dharma.)

Dharma is that which is characterized by an impelling force. / Dharma is that which is characterized by (Vedic) injunctions