Al-Kāfi - Volume 7 > The Testimony of an Accuser and an Ex-convict
Hadith #1

1- مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ مُحَمَّدِ بْنِ إِسْمَاعِيلَ عَنْ مُحَمَّدِ بْنِ الْفُضَيْلِ عَنْ أَبِي الصَّبَّاحِ الْكِنَانِيِّ قَالَ سَأَلْتُ أَبَا عَبْدِ اللهِ (عَلَيْهِ السَّلام) عَنِ الْقَاذِفِ بَعْدَ مَا يُقَامُ عَلَيْهِ الْحَدُّ مَا تَوْبَتُهُ قَالَ يُكْذِبُ نَفْسَهُ قُلْتُ أَرَأَيْتَ إِنْ أَكْذَبَ نَفْسَهُ وَتَابَ أَتُقْبَلُ شَهَادَتُهُ قَالَ نَعَمْ.

1. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Muhammad ibn ’Isma‘il from Muhammad ibn al-Fudayl from abu al-Sabbah al-Kinaniy who has narrated the following: “I once asked abu ‘Abd Allah, ‘Alayhi al-Salam, about an accuser who is convicted and subjected to penalty and about what his repentance is. He (the Imam) said, ‘He must call his soul a liar.’ I then asked, ‘If he calls his soul a liar and repents, is then his testimony acceptable ? 5 He (the Imam) said, ‘Yes, it then becomes acceptable. 5 ”