Amir al-mu'minin's lamentation for the Prophet's passing
Nahj al-Balāgha|Volume 1|Book 3|Chapter 292
٢٩٢. وَقَالَ (عليه السلام): عَلَى قَبْرِ رَسُولِ اللَّهِ (صلى الله عليه وآله) سَاعَةَ دَفْنِهِ:
292. Amīr al-mu’minīn, peace be upon him, said on the grave of the Messenger of Allāh, peace be upon him and his descendants, at the time of burial: