Unwavering certainty in recognizing truth
Nahj al-Balāgha|Volume 1|Book 3|Chapter 184
١٨٤. وَقَالَ (عليه السلام): مَا شَكَكْتُ فِي الْحَقِّ مُذْ أُرِيتُهُ.
184. Amir al-mu'minin, peace be upon him, said: I have never entertained doubt about right since I was shown it.