The Prophet ﷺ said, "Whoever has a hundred Muslims pray the funeral prayer over him will be forgiven."
عن النبي ﷺ قال: من صلى عليه مائة من المسلمين غفر له.
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Ibn Majah (1488) narrated it from Abu Bakr bin Abu Shayba, who said, "Ubaydullah narrated to us," who said, "Shayban informed us, from Amash, from Abu Salih, from Abu Hurairah," and he mentioned it. Its chain of transmission is sahih. Busiri said, "This is a sahih chain, its narrators being the narrators of the Sahihayn, and it has a corroborating witness from the hadith of Ayesha, narrated by Nasai and Tirmidhi, who said, hasan sahih."I say, this is a shortcoming on the part of Busiri, for the hadith of Ayesha is in Sahih Muslim, as has already passed.