Skandapurana 6.3.189.26

6.3.189.26

brahmahatyā surāpānaṃ steyaṃ gurvaṅganāgamaḥ .
ebhistu saha saṃyogo viśvastānāṃ ca vañcanam .. 189.26 ..

The killing of a brahmin, drinking liquor, theft, violation of the guru's bed, / association with these [sinners], and deception of those who trust;