《资治通鉴·唐纪·唐纪七》
于是，高祖传召李世民前来，抚慰他说：近些日子以来，我几乎出现了曾母误听曾参杀人而丢开织具逃走的疑惑。 
上乃召世民，抚之曰： 近日以来，几有投杼之惑。 
So, Gaozu summoned Li Shimin and comforted him, saying: In recent days, I almost had the suspicion that Zeng's mother mistakenly heard that Zeng Can had killed someone and ran away after throwing away her weaving utensils.