 حَدَّثَنِی مُحَمَّدُ بْنُ الْحَسَنِ الصَّفَّارُ عَنْ مُحَمَّدِ بْنِ الْحُسَیْنِ بْنِ أَبِی الْخَطَّابِ عَنِ الْحَسَنِ بْنِ مَحْبُوبٍ عَنْ عَبْدِ الْعَزِیزِ عَنِ ابْنِ أَبِی یَعْفُورٍ قَالَ قَالَ أَبُو عَبْدِ اللَّهِ ع إِذَا صَلَّیْتَ صَلَاهً فَرِیضَهً فَصَلِّهَا لِوَقْتِهَا صَلَاهَ مُوَدِّعٍ یَخَافُ أَنْ لَا یَعُودَ إِلَیْهَا أَبَداً ثُمَّ اصْرِفْ بِبَصَرِکَ إِلَی مَوْضِعِ سُجُودِکَ فَلَوْ تَعْلَمُ مَنْ عَنْ یَمِینِکَ وَ شِمَالِکَ لَأَحْسَنْتَ صَلَاتَکَ وَ اعْلَمْ أَنَّکَ قُدَّامَ مَنْ یَرَاکَ وَ لَا تَرَاهُ.
2.  Imam  Ja’far  Sadiq    says,  “O  Abdullah,  when  you offer an obligatory prayer, offer it on time. Else it is possible that  you  might  lose  the  opportunity  to  do  so.  Focus  your eyes on the place of your prostrations while offering Salaat. You pray carefully as if there is someone around you. Know that He is seeing you and you are not able to see Him.”