hadith
1660
۞
Imam Ali (AS) said, ‘The person to experience the greatest pain on the Day of Resurrection will be the one who was dissatisfied with the decree of Allah.
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ) : أشَدُّ النّاسِ عَذاباً يَومَ القيامةِ المُتَسخِّطُ لِقَضاءِ اللّهِ.