وَ رَوَى مُحَمَّدُ بْنُ مُسْلِمٍ عَنْ أَبِي جَعْفَرٍ ع أَنَّهُ سُئِلَ عَنْ رَجُلٍ دَخَلَ مَعَ الْإِمَامِ فِي صَلَاتِهِ وَ قَدْ سَبَقَهُ بِرَكْعَةٍ فَلَمَّا فَرَغَ الْإِمَامُ خَرَجَ مَعَ النَّاسِ ثُمَّ ذَكَرَ بَعْدَ ذَلِكَ أَنَّهُ قَدْ فَاتَتْهُ رَكْعَةٌ قَالَ
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يُعِيدُ رَكْعَةً وَاحِدَةً.
English translationBab Ul Qaim Publications
Hadith.1020 - Muhammad ibn Muslim narrated that Imam Muhammad ibn Ali Al-Baqir (as) was asked about a man who entered the prayer with the Imam and was already behind by one rak'ah. When the Imam completed the prayer and left with the congregation, the man remembered that he had missed one rak'ah. Imam (as) said: "He should repeat one rak'ah."
Translation: Bab Ul Qaim Publications·Thaqalayn link·The Arabic above is the original.
الهوامش1
[3]يدل على أن الفصل عند السهو غير مبطل كما مر.( مراد).ص 350