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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
ahmad:26739 – ʿAbd al-Razzāq > Sufyān > al-Aʿmash > Abū Wāʾil > Um Salamah

Whenever you visit the sick or the dead, supplicate for good because angels say" Amen" to whatever you say. She added: When Abu Salama died, I went to the Messenger of Allah ﷺ and said: Messenger of Allah, Abu Salama has died. He told me to recite:" O Allah! forgive me and him (Abu Salama) and give me a better substitute than he." So I said (this), and Allah gave me in exchange Muhammad, who is better for me than him (Abu Salama). (Using translation from Muslim 919)  

أحمد:٢٦٧٣٩ – حَدَّثَنَا عَبْدُ الرَّزَّاقِ قَالَ حَدَّثَنَا سُفْيَانُ عَنْ الْأَعْمَشِ عَنْ أَبِي وَائِلٍ عَنْ أُمِّ سَلَمَةَ قَالَتْ

قَالَ النَّبِيُّ ﷺ إِذَا حَضَرْتُمُ الْمَيِّتَ أَوِ الْمَرِيضَ فَقُولُوا خَيْرًا فَإِنَّ الْمَلَائِكَةَ يُؤَمِّنُونَ عَلَى مَا تَقُولُونَ  

See similar narrations below:

Collected by Ibn Mājah, Ṭabarānī, Suyūṭī
ibnmajah:1455 – Abū Dāwud Sulaymān b. Tawbah > ʿĀṣim b. ʿAlī > Qazaʿah b. Sūwayd > Ḥumayd al-Aʿraj > al-Zuhrī > Maḥmūd b. Labīd > Shaddād b. Aws

“When you come to your dead ones, close their eyes, for the sight follows the soul. And say good things, for the Angels say Amin to what the members of the household say.”  

ابن ماجة:١٤٥٥ – حَدَّثَنَا أَبُو دَاوُدَ سُلَيْمَانُ بْنُ تَوْبَةَ حَدَّثَنَا عَاصِمُ بْنُ عَلِيٍّ حَدَّثَنَا قَزَعَةُ بْنُ سُوَيْدٍ عَنْ حُمَيْدٍ الأَعْرَجِ عَنِ الزُّهْرِيِّ عَنْ مَحْمُودِ بْنِ لَبِيدٍ عَنْ شَدَّادِ بْنِ أَوْسٍ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ إِذَا حَضَرْتُمْ مَوْتَاكُمْ فَأَغْمِضُوا الْبَصَرَ فَإِنَّ الْبَصَرَ يَتْبَعُ الرُّوحَ وَقُولُوا خَيْرًا فَإِنَّ الْمَلاَئِكَةَ تُؤَمِّنُ عَلَى مَا قَالَ أَهْلُ الْبَيْتِ  

tabarani:20119 – Isḥāq b. Ibrāhīm al-Dabarī > ʿAbd al-Razzāq > al-Thawrī > al-Aʿmash > Abū Wāʾil > Um Salamah

[Machine] The Messenger of Allah ﷺ said, "When you witness a deceased person, say good things about them, for the angels will believe in what you say."  

الطبراني:٢٠١١٩ – حَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ الدَّبَرِيُّ عَنْ عَبْدِ الرَّزَّاقِ عَنِ الثَّوْرِيِّ عَنِ الْأَعْمَشِ عَنْ أَبِي وَائِلٍ عَنْ أُمِّ سَلَمَةَ قَالَتْ

قَالَ رَسُولُ اللهِ ﷺ «إِذَا حَضَرْتُمُ الْمَيِّتَ فَقُولُوا خَيْرًا فَإِنَّ الْمَلَائِكَةَ يُؤَمِّنُونَ عَلَى مَا تَقُولُونَ»  

suyuti:1676a –
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السيوطي:١٦٧٦a –

"إِذا حَضَرتُمُ المريضَ أو الميِّتَ فقُولوا خيرًا فإِنَّ الملائِكةَ يؤمِّنون على ما تَقُولُون".  

[حم] أحمد [م] مسلم [د] أبو داود [ت] الترمذي حسن صحيح، [ن] النسائي [هـ] ابن ماجة [حب] ابن حبّان [ك] الحاكم في المستدرك عن أم سلمة