Al-Haytham ibn ‘Ubayd reported: Ibn Sirin, may Allah be pleased with him, heard a man cursing Al-Hajjaj, so he said, “Calm down, sir! When you arrive in the Hereafter, the smallest sins you committed will be worse for you than the greatest sins committed by Al-Hajjaj. Know that Allah judges with justice! If He takes something away from Al-Hajjaj because of his wrongdoing, He also gives back to Al-Hajjaj because he was wronged, so do not busy yourself with cursing him.”
Source: al-Tawbah li-Ibn Abī al-Dunyā 41
Imam al-Qushayri commented, “It is said that a servant will receive his book of deeds on the Day of Resurrection and he will not see any good in it. He will say: Where are my prayers? Where is my fasting? Where are my acts of obedience? It will be said: All of your good deeds have been lost because you were backbiting against people.”
Source: al-Risālah al-Qushayrīyah 1/291
عَنِ الْهَيْثَمِ بْنِ عُبَيْدٍ قَالَ سَمِعَ ابْنُ سِيرِينَ رَضِيَ اللَّهُ عَنْهُ رَجُلًا يَسُبُّ الْحَجَّاجَ فَقَالَ مَهْ أَيُّهَا الرَّجُلُ إِنَّكَ لَوْ وَافَيْتَ الْآخِرَةَ كَانَ أَصْغَرُ ذَنْبٍ عَمِلْتَهُ قَطُّ أَعْظَمَ عَلَيْكَ مِنْ أَعْظَمِ ذَنْبٍ عَمِلَهُ الْحَجَّاجُ وَاعْلَمْ أَنَّ اللَّهَ حَكَمٌ عَدْلٌ إِنْ أَخَذَ مِنَ الْحَجَّاجِ لِمَنْ ظُلِمَ شَيْئًا فَسَيَأْخُذُ لِلْحَجَّاجِ مِمَّنْ ظَلَمَهُ فَلَا تَشْغَلَنَّ نَفْسَكَ بِسَبِّهِ
41 التوبة لابن أبي الدنيا القصاص في يوم الخلاص
وقال القشيرية قيل يؤتى العبد يَوْم الْقِيَامَة كتابه فلا يرى فِيهِ حسنة فَيَقُول أين صلاتي وصيامي وطاعاتي فيقال ذهب عملك كُلهُ باغتيابك لِلنَّاسِ
1/291 الرسالة القشيرية
