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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
nasai-kubra:2131 – Isḥāq b. Ibrāhīm > Muḥammad b. Sawāʾ Abū al-Khaṭṭāb > Abū Bakkār al-Ḥakam b. Farrūkh > Ṣallá Binā Abū al-Malīḥ > Jināzah Faẓanannā > Qad Kabbar Faʾaqbal ʿAlaynā Biwajhih > Aqīmūā Ṣufūfakum And Ltaḥsun Shafāʿatukum > Abū al-Malīḥ > ʿAbdullāh b. Salīṭ

[Machine] One of the mothers of the believers, Maymuna, the wife of the Prophet ﷺ , said: The Prophet ﷺ told me that there is no deceased person whom a group of people from the nation pray for, except that they will intercede for him. So I asked Abu al-Malih about the group, and he said: forty.  

الكبرى للنسائي:٢١٣١ – أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ قَالَ أَخْبَرَنَا مُحَمَّدُ بْنُ سَوَاءٍ أَبُو الْخَطَّابِ قَالَ حَدَّثَنِي أَبُو بَكَّارٍ الْحَكَمُ بْنُ فَرُّوخٍ قَالَ صَلَّى بِنَا أَبُو الْمَلِيحِ عَلَى جِنَازَةٍ فَظَنَنَّا أَنَّهُ قَدْ كَبَّرَ فَأَقْبَلَ عَلَيْنَا بِوَجْهِهِ فَقَالَ أَقِيمُوا صُفُوفَكُمْ وَلْتَحْسُنْ شَفَاعَتُكُمْ قَالَ أَبُو الْمَلِيحِ حَدَّثَنِي عَبْدُ اللهِ بْنُ سَلِيطٍ

عَنْ إِحْدَى أُمَّهَاتِ الْمُؤْمِنِينَ وَهِيَ مَيْمُونَةُ زَوْجُ النَّبِيِّ ﷺ قَالَتْ أَخْبَرَنِي النَّبِيُّ ﷺ قَالَ «مَا مِنْ مَيِّتٍ يُصَلِّي عَلَيْهِ أُمَّةٌ مِنَ النَّاسِ إِلَّا شُفِّعُوا فِيهِ» فَسَأَلْتُ أَبَا الْمَلِيحِ عَنِ الْأُمَّةِ قَالَ أَرْبَعُونَ  

See similar narrations below:

Collected by Nasāʾī
nasai:1993 – Isḥāq b. Ibrāhīm > Muḥammad b. Sawāʾ Abū al-Khaṭṭāb > Abū Bakkār al-Ḥakam b. Farrūkh > Ṣallá Binā Abū al-Malīḥ > Janāzah Faẓanannā > Qad Kabbar Faʾaqbal ʿAlaynā Biwajhih > Aqīmūā Ṣufūfakum And Ltaḥsun Shafāʿatukum > Abū al-Malīḥ > ʿAbdullāh Wahū Ibn Salīṭ

"Abu Al-Malih led us in offering the funeral prayer and we thought that he had said the Takbir, but he turned to us and said: 'Make you rows straight and intercede properly.' Abu Al-Malih said: Abdullah - meaning Ibn Salit-narrated to me that one of the Mothers of the believes, Maimunah the wife of the Prophet, said: The Prophet told me: There is no deceased person for whom a group of people offers the funeral prayer, but their intercession for him will be accepted.' I asked Abu Al-Malih about the (number of that) group and he said: 'Forty."'  

النسائي:١٩٩٣ – أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ قَالَ أَنْبَأَنَا مُحَمَّدُ بْنُ سَوَاءٍ أَبُو الْخَطَّابِ قَالَ حَدَّثَنَا أَبُو بَكَّارٍ الْحَكَمُ بْنُ فَرُّوخٍ قَالَ

صَلَّى بِنَا أَبُو الْمَلِيحِ عَلَى جَنَازَةٍ فَظَنَنَّا أَنَّهُ قَدْ كَبَّرَ فَأَقْبَلَ عَلَيْنَا بِوَجْهِهِ فَقَالَ أَقِيمُوا صُفُوفَكُمْ وَلْتَحْسُنْ شَفَاعَتُكُمْ قَالَ أَبُو الْمَلِيحِ حَدَّثَنِي عَبْدُ اللَّهِ وَهُوَ ابْنُ سَلِيطٍ عَنْ إِحْدَى أُمَّهَاتِ الْمُؤْمِنِينَ وَهِيَ مَيْمُونَةُ زَوْجُ النَّبِيِّ ﷺ قَالَتْ أَخْبَرَنِي النَّبِيُّ ﷺ قَالَ مَا مِنْ مَيِّتٍ يُصَلِّي عَلَيْهِ أُمَّةٌ مِنَ النَّاسِ إِلاَّ شُفِّعُوا فِيهِ فَسَأَلْتُ أَبَا الْمَلِيحِ عَنِ الأُمَّةِ فَقَالَ أَرْبَعُونَ