hadith
4903
۞
Imam Ali (AS) said, The sincere one is not suspicious and the one who is certain does not doubt.
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ) : مَا ارْتابَ مُخْلِصٌ وَلاشَكَّ مُوقِنٌ