Riyad as-Saliheen 933
Ibn 'Abbas (May Allah be pleased with them) reported:
The Messenger of Allah ﷺ said, "If a Muslim dies and forty people, who do not associate anything with Allah in worship, participate in the funeral prayer over him, Allah will accept their intercession for him."
[Muslim].
وعن ابن عباسٍ رضي الله عنهما ، قَالَ : سَمِعْتُ رسول الله يقول : « مَا مِنْ رَجُلٍ مُسْلِمٍ يَمُوتُ ، فَيقومُ عَلَى جَنَازَتِهِ أرْبَعُونَ رَجُلاً لا يُشْرِكُونَ بِاللهِ شَيْئاً ، إِلا شَفَّعَهُمُ اللهُ فِيهِ » . رواه مسلم .
Classification
Sahih (Authentic)
References
Riyad as-Saliheen 933
Riyad as-Saliheen Book of Visiting the Sick, Hadith 40