Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) relates this as a marfu' hadith: The Prophet (peace and blessings be upon him) said: "An impure thing does not expiate an impure thing; a pure thing expiates an impure thing."
Al-Bazzar and al-Tabarani in al-Mu'jam al-Awsat recorded it. Its chain contains a narrator, Qays bin al-Rabi', who has been criticised; Shu'bah and al-Thawri declared him thiqah (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الزكاة / 4626
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«أخرجه مسند أحمد برقم: 3663، وأخرجه المعجم الكبير للطبراني برقم: 10553»