Al-Kāfi
Hadith 6272ـ سَهْلٌ عَنْ بَعْضِ أَصْحَابِهِ عَنْ أَبِي هَمَّامٍ إِسْمَاعِيلَ بْنِ هَمَّامٍ عَنْ أَبِي الْحَسَنِ الرِّضَا (عَلَيْهِ الْسَّلام) قَالَ قَالَ أَبُو جَعْفَرٍ (عَلَيْهِ الْسَّلام) حِينَ احْتُضِرَ إِذَا أَنَا مِتُّ فَاحْفِرُوا لِي وَشُقُّوا لِي شَقّاً فَإِنْ قِيلَ لَكُمْ إِنَّ رَسُولَ الله (صلّى اللهُ عَلَيْهِ وَآلِه) لُحِدَ لَهُ فَقَدْ صَدَقُوا.
2. Sahl has narrated from certain persons of his people from abu Hammam ’Isma‘il ibn Hammad who has said the following: “Abu Ja‘far (a.s.), when about to leave this world said, ‘When I die dig a grave for me as a straight cut in the ground, as opposed to digging straight and then digging horizontally a passage to accommodate the body which is called Lahad. If people say that the Messenger of Allah was place in Lahad, accept it as true.’”