The Compendium of Bheḷa 4.2.5

4.2.5

tato ' lparetā bhavati sujīrṇo durbalo ' thavā | na paśyati naraḥ śuklaṃ sarvadhātuparikṣayāt ||

Then a man comes to have little semen, or is thoroughly decrepit and weak; / he sees no semen, because of the wasting of all the dhātus.