Al-Kāfi

Hadith 783
mourning-condolenceimam-kazimahl-al-bayt
9ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ وَمُحَمَّدُ بْنُ إِسْمَاعِيلَ عَنِ الْفَضْلِ بْنِ شَاذَانَ جَمِيعاً عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ هِشَامِ بْنِ الْحَكَمِ قَالَ رَأَيْتُ مُوسَى (عَلَيْهِ الْسَّلام) يُعَزِّي قَبْلَ الدَّفْنِ وَبَعْدَهُ.
9. Ali ibn Ibrahim has narrated from his father and Muhammad ibn Isma’il from al-Fadl ibn Shadhan all from Ibn Abi ‘Umayr from Hisham ibn al-Hakam who has said the following: “I observed (Imam) Musa (a.s.), offer condolences before and after burial.”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī