Al-Kāfi - Volume 3 > Preferences for Relatives and Those of Them to Whom Zakat Cannot Be Paid
Hadith #3

3ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ أَبِي نَصْرٍ قَالَ سَأَلْتُ الرِّضَا (عَلَيْهِ الْسَّلام) عَنِ الرَّجُلِ لَهُ قَرَابَةٌ وَمَوَالِي وَأَتْبَاعٌ يُحِبُّونَ أَمِيرَ الْمُؤْمِنِينَ (صلّى اللهُ عَلَيْهِ وَآلِه) وَلَيْسَ يَعْرِفُونَ صَاحِبَ هَذَا الأمْرِ أَ يُعْطَوْنَ مِنَ الزَّكَاةِ قَالَ لاَ.

3. A number of our people have narrated from Sahl ibn Ziyad from Ahmad ibn Muhammad ibn ‘Isa from Ahmad ibn Muhammad from ibn abu Nasr who has said the following: “I once asked al-Rida’, ‘Alayhi al-Salam, about a man who has relatives, friends and followers who love ’Amir al-Mu’minin, ‘Alayhi al-Salam, but they do not acknowledge the owner of this issue (one who possesses Divine Authority) if he can give Zakat to them. He (the Imam) said, ‘No, he cannot give Zakat to them.’”