The Funeral Prayer (Salat Al-Janazah)
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 26
وَقَالَ أَبُو جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ: «كَانَ أَمِيرُ اَلْمُؤْمِنِينَ عَلَيْهِ اَلسَّلاَمُ يُكَبِّرُ خَمْساً خَمْساً كَانَ إِذَا أَدْرَكَهُ اَلنَّاسُ قَالُوا يَا أَمِيرَ اَلْمُؤْمِنِينَ لَمْ نُدْرِكِ اَلصَّلاَةَ عَلَى سَهْلِ بْنِ حُنَيْفٍ فَيَضَعُهُ فَيُكَبِّرُ عَلَيْهِ خَمْساً حَتَّى اِنْتَهَى إِلَى قَبْرِهِ خَمْسَ مَرَّاتٍ.
Imam Muhammad ibn Ali Al-Baqir عليه السلام said: "The Commander of the Faithful Imam Ali ibn Abi Talib عليه السلام used to recite takbirs five at a time over the deceased. When people would arrive late and say, 'O’ Commander of the Faithful, we did not catch the prayer over Sahl ibn Hunayf,' he would place the bier down and recite five takbirs over him again, repeating this process until he reached the grave, doing so five times”.
- Ṣaḥīḥ al-Faqīh, p. 30