 أَبِی ره عَنْ سَعْدِ بْنِ عَبْدِ اللَّهِ عَنْ سَلَمَهَ بْنِ الْخَطَّابِ عَنْ إِبْرَاهِیمَ بْنِ مُحَمَّدٍ الثَّقَفِیِّ عَنْ مَیْمُونٍ عَنْ عَبْدِ الْمُطَّلِبِ بْنِ زِیَادٍ عَنْ أَبَانِ بْنِ تَغْلِبَ عَنِ ابْنِ أَبِی لَیْلَی عَنْ عَبْدِ اللَّهِ بْنِ جَعْفَرٍ یَرْفَعُهُ قَالَ قَالَ عَلِیُّ بْنُ أَبِی طَالِبٍ ع مَنْ صَلَّی بِأَذَانٍ وَ إِقَامَهٍ صلاه [صَلَّی] خَلْفَهُ صَفٌّ مِنَ الْمَلَائِکَهِ لَا یُرَی طَرَفَاهُ- وَ مَنْ صَلَّی بِإِقَامَهٍ صلاه [صَلَّی] خَلْفَهُ مَلَکٌ.
1.  For a person who recites Azaan and Iqamah angels would stand in rows behind him. Those rows would be so wide that  their  ends  would  be  unknown.  And  the  person  who offers  Salaat  after  saying  Iqamah;  an  angel  would  pray behind him.”