One's vow of celibacy is not broken by having nocturnal pollutions. In such cases the expiation consists in the pouring of libations of clarified butter on the burning fire.
नावर्तते व्रतं स्वप्ने शुक्रमोक्षे कथंचन। आज्यहोमः समिद्धेऽग्नौ प्रायश्चित्तं विधीयते॥