Al-Kāfi - Volume 1 > Tacit and Explicit Testimony as proof of al-Hassan ibn Ali’s (a.s.) (a.s.) Divine Authority over the people after Amir al-Mu’minin Ali (a.s.)
Hadith #1

1ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنْ حَمَّادِ بْنِ عِيسَى عَنْ إِبْرَاهِيمَ بْنِ عُمَرَ الْيَمَانِيِّ وَعُمَرَ بْنِ أُذَيْنَةَ عَنْ أَبَانٍ عَنْ سُلَيْمِ بْنِ قَيْسٍ قَالَ شَهِدْتُ وَصِيَّةَ أَمِيرِ الْمُؤْمِنِينَ (عَلَيْهِ السَّلام) حِينَ أَوْصَى إِلَى ابْنِهِ الْحَسَنِ (عَلَيْهِ السَّلام) وَأَشْهَدَ عَلَى وَصِيَّتِهِ الْحُسَيْنَ (عَلَيْهِ السَّلام) وَمُحَمَّداً وَجَمِيعَ وُلْدِهِ وَرُؤَسَاءَ شِيعَتِهِ وَأَهْلَ بَيْتِهِ ثُمَّ دَفَعَ إِلَيْهِ الْكِتَابَ وَالسِّلاحَ وَقَالَ لابْنِهِ الْحَسَنِ (عَلَيْهِ السَّلام) يَا بُنَيَّ أَمَرَنِي رَسُولُ الله (صَلَّى اللهُ عَلَيْهِ وَآلِه) أَنْ أُوصِيَ إِلَيْكَ وَأَنْ أَدْفَعَ إِلَيْكَ كُتُبِي وَسِلاحِي كَمَا أَوْصَى إِلَيَّ رَسُولُ الله (صَلَّى اللهُ عَلَيْهِ وَآلِه) وَدَفَعَ إِلَيَّ كُتُبَهُ وَسِلاحَهُ وَأَمَرَنِي أَنْ آمُرَكَ إِذَا حَضَرَكَ الْمَوْتُ أَنْ تَدْفَعَهَا إِلَى أَخِيكَ الْحُسَيْنِ (عَلَيْهِ السَّلام) ثُمَّ أَقْبَلَ عَلَى ابْنِهِ الْحُسَيْنِ (عَلَيْهِ السَّلام) فَقَالَ وَأَمَرَكَ رَسُولُ الله (صَلَّى اللهُ عَلَيْهِ وَآلِه) أَنْ تَدْفَعَهَا إِلَى ابْنِكَ هَذَا ثُمَّ أَخَذَ بِيَدِ عَلِيِّ بن الحسين (عَلَيْهما السَّلام) ثُمَّ قَالَ لِعَلِيِّ بْنِ الْحُسَيْنِ وَأَمَرَكَ رَسُولُ الله (صَلَّى اللهُ عَلَيْهِ وَآلِه) أَنْ تَدْفَعَهَا إِلَى ابْنِكَ مُحَمَّدِ بْنِ عَلِيٍّ وَأَقْرِئْهُ مِنْ رَسُولِ الله (صَلَّى اللهُ عَلَيْهِ وَآلِه) وَمِنِّي السَّلامَ.

1. Ali ibn Ibrahim has narrated from his father from Hammad ibn ‘Isa from Ibrahim ibn ‘Umar al-Yamani and ‘Umar ibn ’Udhayna from Sulaym ibn Qays who has said the following. “I witnessed Amir al-Mu’minin Ali’s (a.s.) will made before me in which he appointed his, al-Hassan (a.s.) as the executor. He called al-Husayn (a.s.), Muhammad and all his other sons, all the leaders among his followers and his whole family to bear testimony to his will. He then delivered the Book and the Armament to his son al-Hassan (a.s.) and said, “My son, the Messenger of Allah commanded me to appoint you as the executor of my will. (He commanded me) to deliver to you my books and my Armament just as the Messenger of Allah did. He made his will in which he appointed me as the executor, delivered to me his books and his Armament and commanded me to command you to deliver them to al-Husayn (a.s.) when you will be about to leave this world. Then he turned to his son, al-Husayn (a.s.) and said, “The Messenger of Allah has commanded you to deliver them to your son, this one. Then he held with his hand Ali ibn al-Husayn (a.s.) and said to him, “The Messenger of Allah has commanded you to deliver them to your son, Muhammad ibn Ali and convey to him the Islamic greeting of the Messenger of Allah and my Islamic greeting.”