1173. hadíth
وَ رَوَى مُحَمَّدُ بْنُ سَهْلٍ عَنْ أَبِيهِ قَالَ: سَأَلْتُ اَلرِّضَا عَلَيْهِ اَلسَّلاَمُ عَمَّنْ رَكَعَ مَعَ إِمَامِ قَوْمٍ يُقْتَدَى بِهِ ثُمَّ رَفَعَ رَأْسَهُ قَبْلَ اَلْإِمَامِ قَالَ «يُعِيدُ رُكُوعَهُ مَعَهُ.
Muhammad ibn Sahl narrated from his father who said: “I asked Imam Al-Ridha (a.s) about a person who bows (in ruku') with an Imam of a congregation who is followed, and then raises his head before the Imam.” Imam (a.s) replied: "He should repeat his bowing (ruku') with him."