《隋书·列传·卷十七》
武帝唤若弼问及此事，若弼知道太子之位不可动摇，恐怕祸及自己，就违心地对武帝说： 皇太子的德望一天比一天高，我没有发现他的过错。 
帝呼弼问之，弼知太子不可动摇，恐祸及己，诡对曰： 皇太子德业日新，未睹其阙。 
Emperor Wu summoned Ruobi and asked about it. Ruobi knew that the Crown Prince's position was unshakeable, and fearing disaster for himself, reluctantly said to Emperor Wu: The Crown Prince's virtue and reputation increase with each passing day; I have found no fault in him. 