In one narration the words are: I asked Sayyiduna Abu Umamah (may Allah be pleased with him), and I mentioned the zakah collection officials to him. He said: Zakah is a right, and those who collect it (wrongfully) will go to Hell; this is established by the saying of the Prophet (peace and blessings be upon him).
Al-Tabarani recorded it in al-Mu'jam al-Kabir. Its chain contains a narrator, Qaza'ah bin Suwayd, about whom much has been said, though he has also been declared trustworthy; and the narrator Jahm is not known.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الزكاة / 4465