Man Lā Yaḥḍuruh al-Faqīh
Hadith 11681175 - وَ رَوَى اَلْحُسَيْنُ بْنُ يَسَارٍ أَنَّهُ سَمِعَ مَنْ يَسْأَلُ اَلرِّضَا عَلَيْهِ اَلسَّلاَمُ: عَنْ رَجُلٍ صَلَّى إِلَى جَانِبِ رَجُلٍ فَقَامَ عَنْ يَسَارِهِ وَ هُوَ لاَ يَعْلَمُ كَيْفَ يَصْنَعُ إِذَا عَلِمَ وَ هُوَ فِي اَلصَّلاَةِ قَالَ «يُحَوِّلُهُ إِلَى يَمِينِهِ.
Hadith.1175 - Al-Hussain ibn Yasar narrated that he heard someone asking Imam Al-Ridha (as) about a man who was praying next to another man and stood on his left side without knowing what to do upon realizing this during the prayer.
Imam (as) said: "He should move him to his right side."