وَ رَوَى عَبْدُ اَلرَّحْمَنِ بْنُ اَلْحَجَّاجِ عَنْ أَبِي اَلْحَسَنِ عَلَيْهِ اَلسَّلاَمُ: فِي رَجُلٍ صَلَّى فِي جَمَاعَةٍ يَوْمَ اَلْجُمُعَةِ فَلَمَّا رَكَعَ اَلْإِمَامُ اَلْجَأَهُ اَلنَّاسُ إِلَى جِدَارٍ أَوْ أُسْطُوَانَةٍ فَلَمْ يَقْدِرْ عَلَى أَنْ يَرْكَعَ وَ لاَ أَنْ يَسْجُدَ حَتَّى يَرْفَعَ اَلْقَوْمُ رُءُوسَهُمْ أَ يَرْكَعُ ثُمَّ يَسْجُدُ وَ يَلْحَقُ بِالصَّفِّ وَ قَدْ قَامَ اَلْقَوْمُ أَمْ كَيْفَ يَصْنَعُ فَقَالَ «يَرْكَعُ وَ يَسْجُدُ ثُمَّ يَقُومُ فِي اَلصَّفِّ وَ لاَ بَأْسَ بِذَلِكَ.
Abd al-Rahman ibn al-Hajjaj narrated from Imam Abu al-Hasan (a.s) regarding a man who prayed in congregation on Jumu’ah. When the Imam bowed, the crowd pushed him against a wall or pillar, preventing him from bowing or prostrating until the people raised their heads. He asked if he should bow, then prostrate, and catch up with the row when the people stand, or what he should do. Imam (a.s) replied: "He should bow and prostrate, then stand with the row, and there is no issue with that."