Bulugh al-Maram, Book 3, Hadith 618 (English) ⓘ
‘Abdullah Ibn Ja’far (RAA) narrated, ‘When we received the news of Ja’far’s death; when he was killed (in the Battle of Mu’tah), the Prophet said: “Prepare some food for the family of Ja’far, for what has befallen them is keeping them preoccupied.” Related by the five lmams except for An-Nasa’i.
وَعَنْ عَبْدِ اَللَّهِ بْنِ جَعْفَرٍ رَضِيَ اَللَّهُ عَنْهُمَا قَالَ: { لَمَّا جَاءَ نَعْيُ جَعْفَرٍ -حِينَ قُتِلَ- قَالَ اَلنَّبِيُّ - صلى الله عليه وسلم - "اصْنَعُوا لِآلِ جَعْفَرٍ طَعَامًا, فَقَدْ أَتَاهُمْ مَا يَشْغَلُهُمْ" } أَخْرَجَهُ الْخَمْسَةُ, إِلَّا النَّسَائِيّ َ 1. 1 - حسن. رواه أحمد ( 1 / 205 )، وأبو داود ( 3132 )، والترمذي ( 998 )، وابن ماجه ( 1610 )، وقال الترمذي: "هذا حديث حسن صحيح".
also referenced under: Book 3, Hadith 62 (In-Book)