The Compendium of Bheḷa 6.4.88

6.4.88

aprajassu ca nārīṣu puṃsāṃ naṣṭe ca retasi | jānutrikādikubjeṣu praśastaṃ bastikarmaṇi ||

in women without offspring, and when the semen of men is destroyed, / in bent joints of the knees, sacrum, and so forth, it is praised in enema treatment.