Al-Kāfi
Hadith 862 4ـ عَلِيُّ بْنُ مُحَمَّدٍ عَنْ حَمْدَانَ الْقَلانِسِيِّ قَالَ قُلْتُ لِلْعَمْرِيِّ قَدْ مَضَى أَبُو مُحَمَّدٍ فَقَالَ لِي قَدْ مَضَى وَلَكِنْ قَدْ خَلَّفَ فِيكُمْ مَنْ رَقَبَتُهُ مِثْلُ هَذِهِ وَأَشَارَ بِيَدِهِ.
4. Ali ibn Muhammad has narrated from Hamdan al-Qalanisi who has said the following. “The narrator has said, ‘I said to al-‘Amri, “Has abu Muhammad (a.s.) left this world?” He said, “He has left this world but has appointed for (a Leader with Divine Authority) whose neck is like this. He made a sign with his hand.” (The hand gesture was an indication of Imam’s good health or perhaps age). *1. Al-‘Amri was the first of the twelfth Imam’s representatives.