 ٥ـ أَحْمَدُ بْنُ مُحَمَّدٍ عَنْ مُحَمَّدِ بْنِ الْحَسَنِ عَنِ النَّهْدِيِّ عَنْ أَبِيهِ عَنْ يُونُسَ بْنِ يَعْقُوبَ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ السَّلام) قَالَ سَمِعْتُهُ يَقُولُ لَوْ لَمْ يَكُنْ فِي الارْضِ إِلا اثْنَانِ لَكَانَ الامَامُ أَحَدَهُمَا.
 Ahmad ibn Muhammad has narrated from Muhammad ibn al-Hassan from al-Nahdi from his father from Yunus ibn ya‘qub from abu ‘Abdallah who has said the following. “Would there remain no one except two people one of them will certainly be the Imam.”