Hawzah News Agency – The commander of the faithful Imam Ali peace be upon him says:

لا تَبتَهِجَنَّ بِخَطاءِ غَيرِكَ؛ فإنَّكَ لَن تَملِكَ الإصابَةَ أبَداً.

‘Do not ever rejoice at someone else’s mistake, for verily you yourself will never be immune to committing mistakes.’

Source: Ghurar al-Hikam, no. 10294