1009. hadíth
وَ سَأَلَهُ مَنْصُورُ بْنُ حَازِمٍ: عَنْ رَجُلٍ صَلَّى فَذَكَرَ أَنَّهُ قَدْ زَادَ سَجْدَةً فَقَالَ «لاَ يُعِيدُ صَلاَتَهُ مِنْ سَجْدَةٍ وَ يُعِيدُهَا مِنْ رَكْعَةٍ.
Mansour ibn Hazim asked Imam (a.s) about a person who prayed and then remembered that he had added an extra prostration. Imam (a.s) said: "He does not need to repeat his prayer due to the extra prostration, but he must repeat it from the point of the ruku' (bowing)”.