Hadith 31-158

وَبِهذَا الإِسناد عَنِ الحُسَيْنِ بْنِ عَلِى‏ عَلَيْهِ السَّلامُ أَنَّهُ قالَ: وُجِدَ لَوْحَ تَحْتَ حائِطِ مَدِينَةٍ مِنَ المَدائِن فِيهِ مَكْتُوبٌ: أَنَا اللَّه لا إِلهَ إِلاّ أَنَا وَمُحَمَّد نَبيّي وَعَجِبتُ لِمَنْ أَيقَنَ بِالمَوتِ يَفرَح؟ وعَجِبتُ لِمَن أَيقَنَ بِالقَدَرِ كَيْفَ يَحزَنُ؟ وَعَجِبتُ لِمَنْ اختَبَرَ الدُّنْيا كَيْفَ يَطمَئِنُّ اِلَيها؟ وَعَجِبتُ لِمَنْ أَيقَنَ بِالحِسابِ كَيْفَ يُذنِبُ؟!.

According to the same documentation, on the authority of Al-Husayn ibn Ali (a.s.), “A slab was found under the walls of a town on which it was written, ‘I am God. There is no god but Me. Muhammad is My Prophet. I wonder how one who knows he will die is happy. I wonder how one who is certain about Divine Destiny is sad. I wonder how one who knows about the world relies on it. I wonder how one who is certain about the Reckoning commits sins.’”