 حَدَّثَنِی مُحَمَّدُ بْنُ عَلِیٍّ مَاجِیلَوَیْهِ قَالَ حَدَّثَنِی مُحَمَّدُ بْنُ یَحْیَی عَنْ مُحَمَّدِ بْنِ أَحْمَدَ عَنْ مُوسَی بْنِ جَعْفَرٍ عَنِ الْحَسَنِ بْنِ عَلِیِّ بْنِ نُوحٍ عَنْ صَالِحِ بْنِ عُقْبَهَ عَنْ عَبْدِ اللَّهِ بْنِ مُحَمَّدٍ الْجُعْفِیِّ عَنْ أَبِی جَعْفَرٍ ع قَالَ سَمِعْتُهُ یَقُولُ کَانَ رَسُولُ اللَّهِ ص یَقُولُ مُقَامِی فِیکُمْ وَ الِاسْتِغْفَارُ لَکُمْ حِصْنٌ حَصِینٌ مِنَ الْعَذَابِ فَمَضَی أَکْثَرُ الْحِصْنَیْنِ وَ بَقِیَ الِاسْتِغْفَارُ فَأَکْثِرُوا مِنْهُ فَإِنَّهُ مَمْحَاهٌ لِلذُّنُوبِ قَالَ اللَّهُ عَزَّ وَ جَلَّ- وَ ما کانَ اللَّهُ لِیُعَذِّبَهُمْ وَ أَنْتَ فِیهِمْ وَ ما کانَ اللَّهُ مُعَذِّبَهُمْ وَ هُمْ یَسْتَغْفِرُونَ
3.  It is narrated from Imam Muhammad Baqir (a.s.) that the Holy Prophet (s.a.w.s.) said, “My presence among you and your  repentance  is  a  strong  fortress  to  remain  safe  from chastisement.” Imam said, “Now our great protection is no longer  with  the  world  and  the  only  thing  remaining  is repentance.  So  repent  a  lot  for  it  wipes  sins  as  Almighty Allah says: But Allah was not going to chastise them while you were among them, nor is Allah going to chastise them while yet they ask for forgiveness.”15