असमाप्ते तु कर्मणि याज्यं याजकं वा त्यजतः पूर्वः साहसदण्डः ॥ कZ_०३.१४.३६ ॥
asamāpte tu karmaṇi yājyaṃ yājakaṃ vā tyajataḥ pūrvaḥ sāhasadaṇḍaḥ
若在工作完成之前,施主(yājya)弃离祭司(yājaka),或祭司弃离施主,则适用一级 sāhasa 罚金。
It is symmetric: both patron and provider are penalized for unilateral abandonment, strengthening reliability of service contracts.