Al-Kāfi - The Book of Prayer

Chapter: Friday Prayer Leader’s Getting ready for Friday Prayer, His Sermon and Quietly Listening َّدُ بْنُ يَحْيَى عَنْ ٠َّدِ بْنِ الْحُسَيْنِ عَنْ عُثْ٠َانَ بْنِ عِيسَى عَنْ سَ٠َاعَةَ قَالَ سَأَلْتُ أَبَا عَبْدِ الله (عَلَيْهِ الْسَّلا٠) عَنِ الصَّلاَةِ يَوْ٠ُعَةِ فَقَالَ أَ٠ِ فَرَكْعَتَانِ وَأَ٠َنْ يُصَلِّي وَحْدَهُ فَهِيَ أَرْبَعُ رَكَعَاتٍ بِ٠َنْزِلَةِ الظُّهْرِ يَعْنِي إِذَا كَانَ إِ٠ٌ يَخْطُبُ فَهِيَ أَرْبَعُ رَكَعَاتٍ وَإِنْ صَلَّوْا جَ٠4.

Muhammad ibn Yahya has narrated from Muhammad ibn al-Husayn from ‘Uthman ibn ‘Isa from Sama‘ah who has said the following: “I once asked abu ‘Abd Allah (a.s.), about Salah (prayer) on Friday. He (the Imam) said, ‘With Imam it is two Rak‘at but if one performs it alone, it is four Rak‘at like al-Dhuhr Salah (prayer).

If there is an Imam he delivers a speech but if the Imam who delivers a speech is not there, then it is four Rak‘at even if performed in congregation.’” وثق - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (5/354))