(What is said regarding) the fear of a believer that his good deeds may be annulled (lost) without his knowledge

وَقَالَ إِبْرَاهِيمُ التَّيْمِيُّ مَا عَرَضْتُ قَوْلِي عَلَى عَمَلِي إِلاَّ خَشِيتُ أَنْ أَكُونَ مُكَذَّبًا. وَقَالَ ابْنُ أَبِي مُلَيْكَةَ أَدْرَكْتُ ثَلاَثِينَ مِنْ أَصْحَابِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ كُلُّهُمْ يَخَافُ النِّفَاقَ عَلَى نَفْسِهِ، مَا مِنْهُمْ أَحَدٌ يَقُولُ إِنَّهُ عَلَى إِيمَانِ جِبْرِيلَ وَمِيكَائِيلَ، وَيُذْكَرُ عَنِ الْحَسَنِ: مَا خَافَهُ إِلاَّ مُؤْمِنٌ، وَلاَ أَمِنَهُ إِلاَّ مُنَافِقٌ. وَمَا يُحْذَرُ مِنَ الإِصْرَارِ عَلَى النِّفَاقِ وَالْعِصْيَانِ مِنْ غَيْرِ تَوْبَةٍ لِقَوْلِ اللَّهِ تَعَالَى: {وَلَمْ يُصِرُّوا عَلَى مَا فَعَلُوا وَهُمْ يَعْلَمُونَ}.And Ibrahim At-Taimi said, "When I compare my talks with my deeds (then I find that my deeds are deficient compared with my talks), I am afraid, my deeds deny what I talk." And Ibn Abi Mulaika said, "I met thirty Companions of the Prophet ﷺ and each of them was afraid of becoming a hypocrite and none of them said that he was as strong in belief as the angel Jibril (Gabriel) or Mikael (Michael)." And Al- Hasan (Al-Basri) said, "It is only a faithful believer who dreads hypocrisy and only a hypocrite who considers himself safe (is not afraid of hypocrisy).” And one should be afraid, not to persist in hypocrisy and disobedience of Allah (by committing sins) without repenting to Allah جل جلاله immediately, as is referred to in the Statement of Allah تعالى: "And (they) do not persist in what (wrong) they have done, while they know." (V.3:135).