Chapter on the Rulings of Congregational Prayer (the Minimum Number for Congregational Prayer, the Description of the Imam, Who Is to Be Followed and Who Is Not to Be Followed, Recitation Behind Both of Them, the Rulings of Those Led in Prayer, and Other Such Rulings Related to It)

Tahdhīb al-Aḥkām|Volume 3|Book 1|Chapter 3

Tahdhīb al-Aḥkām

Volume 3, Book 1, Chapter 3

Chapter on the Rulings of Congregational Prayer (the Minimum Number for Congregational Prayer, the Description of the Imam, Who Is to Be Followed and Who Is Not to Be Followed, Recitation Behind Both of Them, the Rulings of Those Led in Prayer, and Other Such Rulings Related to It)

Hadith #79

رَوَى أَحْمَدُ بْنُ مُحَمَّدِ بْنِ عِيسَى عَنْ مَرْوَكِ بْنِ عُبَيْدٍ عَنْ أَحْمَدَ بْنِ اَلنَّضْرِ اَلْخَزَّازِ عَنْ عَمْرِو بْنِ شِمْرٍ عَنْ جَابِرٍ اَلْجُعْفِيِّ قَالَ: قُلْتُ لِأَبِي جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ إِنِّي أَؤُمُّ قَوْماً فَأَرْكَعُ فَيَدْخُلُ اَلنَّاسُ وَ أَنَا رَاكِعٌ فَكَمْ أَنْتَظِرُ قَالَ« مَا أَعْجَبَ مَا تَسْأَلُ عَنْهُ يَا جَابِرُ اِنْتَظِرْ مِثْلَيْ رُكُوعِكَ فَإِنِ اِنْقَطَعُوا وَ إِلاَّ فَارْفَعْ رَأْسَكَ»

Ahmad ibn Muhammad ibn Isa narrated from Marwak ibn Ubayd from Ahmad ibn al-Nadr al-Khazzaz from Amr ibn Shimr from Jabir al-Jufi who said: I said to Abu Ja’far , peace be upon him: “I lead a group in prayer, and I go into rukuh, and people enter while I am in rukuh how long should I wait?” Imam said: “How amazing is your question, O’ Jabir! Wait for the duration of two of your rukus. If they (stop entering), then raise your head; otherwise, continue.”

Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 3, p. 54