Al-Kāfi
Hadith 483 7ـ أَحْمَدُ بْنُ مُحَمَّدٍ عَنْ عَلِيِّ بْنِ الْحَكَمِ عَنِ الْحُسَيْنِ بْنِ أَبِي الْعَلاءِ قَالَ ذَكَرْتُ لابِي عَبْدِ الله (عَلَيْهِ السَّلام) قَوْلَنَا فِي الاوْصِيَاءِ إِنَّ طَاعَتَهُمْ مُفْتَرَضَةٌ قَالَ فَقَالَ نَعَمْ هُمُ الَّذِينَ قَالَ الله تَعَالَى أَطِيعُوا الله وَأَطِيعُوا الرَّسُولَ وَأُولِي الامْرِ مِنْكُمْ وَهُمُ الَّذِينَ قَالَ الله عَزَّ وَجَلَّ إِنَّما وَلِيُّكُمُ الله وَرَسُولُهُ وَالَّذِينَ آمَنُوا.
7. Ahmad ibn Muhammad has narrated from Ali ibn al-Hakam from al-Husayn ibn abu al-‘Ala’ whos has said that I mentioned to Imam abu ‘Abdallah (a.s.) our expression about the successors (of the Prophets (s.a.)) “That obedience to them is obligatory”, the Imam (a.s.) said, ‘It is very true because they are the people about whom Allah, the Most Holy, the Most High, has said, “Believers, obey God, His Messenger, and your (qualified) leaders. . .’ (4:59) It is they about whom Allah, the Most Holy, the Most High, has also said, ‘Only God, His Messenger, and the true believers who are steadfast in prayer and pay alms, while they kneel during prayer, are your guardians (5:55)’”