Al-Kāfi - Volume 1 > Chapter on Miscellaneous Ahadith
Hadith #2

2ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ خَالِدٍ عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ أَبِي نَصْرٍ عَنْ صَفْوَانَ الْجَمَّالِ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ السَّلام) فِي قَوْلِ الله عَزَّ وَجَلَّ كُلُّ شَيْ‏ءٍ هالِكٌ إِلا وَجْهَهُ قَالَ مَنْ أَتَى الله بِمَا أُمِرَ بِهِ مِنْ طَاعَةِ مُحَمَّدٍ (صَلَّى اللهُ عَلَيْهِ وَآلِه) فَهُوَ الْوَجْهُ الَّذِي لا يَهْلِكُ وَكَذَلِكَ قَالَ مَنْ يُطِعِ الرَّسُولَ فَقَدْ أَطاعَ الله.

2. A number of our people has narrated from Ahmad ibn Muhammad ibn Khalid from Ahmad ibn Muhammad ibn abu Nasr from Safwan al-Jammal from Imam abu ‘Abdallah (a.s.) the following. “I asked Imam abu ‘Abdallah (a.s.) about the words of Allah, the Most Holy, the Most High, “Everything will be destroyed except God. . .” (28:88) The Imam (a.s.) said, “It means whoever comes to Allah through obeying His commandments, i.e. following Prophet Muhammad (s.a.) is the face (the aspect of Allah’s relation with people) of Allah that does not perish. So also is His words, “One who obeys the Messenger has certainly obeyed God . .” (4:80).