Mahabharata 7.157.19

संजय उवाच · saṃjaya uvāca

दुर्योधनस्य शकुनेर्मम दुःशासनस्य चरात्रौ रात्रौ भवत्येषा नित्यमेव समर्थना

duryodhanasya śakunermama duḥśāsanasya carātrau rātrau bhavatyeṣā nityameva samarthanā

Our plain-language meaning of this verse is waiting for scholar review.