四部律并論要用抄 2.27

2.27

The second class [of offenses]: the first precept against emission of semen. The Daśādhyāya-vinaya states: “Engaging in expedient means while awake and emitting impurity while asleep, or engaging in expedient means while asleep and emitting while awake, both are sthūlātyayas.” The Mātṛkā-śāstra states: “Acting as a field [of temptation] for another is a sthūlātyaya.” The precepts across the various classes are extensive and cannot be pursued exhaustively in every detail; only difficult points are briefly noted for similarities and differences. Those whose characteristics are easy to know are as explained extensively in the Vinaya and are not set forth again. This should be known.