Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates this saying of the Prophet (peace and blessings be upon him): "Whoever has his funeral prayer offered by one hundred people, Allah Almighty forgives him."
Imam Tabarani recorded it in al-Mu'jam al-Kabir. Its chain contains a narrator, Mubashshir bin Abi al-Malih; I have not found anyone who mentions him.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الجنائز / 4189
Hadith Gradingمحدثین:إسناده ضعیف
Hadith Takhrij«أخرجه المعجم الكبير للطبراني برقم: 503»