وَ سَأَلَ عَلِيُّ بْنُ جَعْفَرٍ أَخَاهُ مُوسَى بْنَ جَعْفَرٍ عَلَيْهِمَا اَلسَّلاَمُ: عَنِ اَلرَّجُلِ هَلْ يَصْلُحُ لَهُ أَنْ يَسْتَنِدَ إِلَى حَائِطِ اَلْمَسْجِدِ وَ هُوَ يُصَلِّي أَوْ يَضَعَ يَدَهُ عَلَى اَلْحَائِطِ وَ هُوَ قَائِمٌ مِنْ غَيْرِ مَرَضٍ وَ لاَ عِلَّةٍ فَقَالَ «لاَ بَأْسَ» وَ عَنِ اَلرَّجُلِ يَكُونُ فِي صَلاَةٍ فَرِيضَةٍ فَيَقُومُ فِي اَلرَّكْعَتَيْنِ اَلْأَوَّلَتَيْنِ هَلْ يَصْلُحُ لَهُ أَنْ يَتَنَاوَلَ جَانِبَ اَلْمَسْجِدِ فَيَنْهَضَ يَسْتَعِينُ بِهِ عَلَى اَلْقِيَامِ مِنْ غَيْرِ ضَعْفٍ وَ لاَ عِلَّةٍ فَقَالَ «لاَ بَأْسَ بِهِ.
Ali ibn Ja'far asked his brother Imam Musa ibn Jafar Al-Kadhim (a.s) on whether it is permissible for a man to lean against the wall of the mosque while he is praying, or to place his hand on the wall while standing, without any illness or condition?" He (a.s) replied: "There is no harm in that." He also asked: "What about a man who is praying the obligatory prayer, and in the first two rak'ahs, he stands up and leans on the side of the mosque to help him rise, without any weakness or condition?" He (a.s) replied: "There is no harm in that either."