《隋书·列传·卷五》
宇文忻与梁士彦亲昵，数相往来，梁士彦当时也有些怨恨，图谋不轨。
忻与梁士彦昵狎，数相往来，士彦时亦怨望，阴图不轨。
Yuwen Xin and Liang Shiyan were close and had frequent contacts. Liang Shiyan also had some resentment at that time and had no intentions.