It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him): The Prophet (peace and blessings be upon him) said: "A man's being killed while bound is an expiation for his previous sins."
Al-Bazzar recorded it. Its chain contains Salih bin Musa bin Talhah, who is matruk (abandoned).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الحدود والديات / 10601
Hadith Gradingمحدثین:ضعیف جداً
Hadith Takhrij«أخرجه البحر الزخار المعروف بمسند البزار 10 - 18 برقم: 8994»