Al-Kāfi

Hadith 2100
quran
13ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ النَّوْفَلِيِّ عَنِ السَّكُونِيِّ عَنْ أَبِي عَبْدِ الله (عَلَيهِ السَّلام) أَنَّ النَّبِيَّ (صَلَّى اللهُ عَلَيْهِ وآلِه) صَلَّى عَلَى سَعْدِ بْنِ مُعَاذٍ فَقَالَ لَقَدْ وَافَى مِنَ الْمَلائِكَةِ سَبْعُونَ أَلْفاً وَفِيهِمْ جَبْرَئِيلُ (عَلَيهِ السَّلام) يُصَلُّونَ عَلَيْهِ فَقُلْتُ لَهُ يَا جَبْرَئِيلُ بِمَا يَسْتَحِقُّ صَلاتَكُمْ عَلَيْهِ فَقَالَ بِقِرَاءَتِهِ قُلْ هُوَ الله أَحَدٌ قَائِماً وَقَاعِداً وَرَاكِباً وَمَاشِياً وَذَاهِباً وَجَائِياً.
13. Ali ibn Ibrahim has narrated from his father from al-Nawfali from al-Sakuni from Abu ‘Abdillah (a.s.) who has said the following: “The Holy Prophet performed prayer for Sa’d ibn Mu’adh and said, ‘A delegate of seventy thousand angels was there, among them Jibril (Gabriel) was also there. They all performed prayer for him (the dead body of Sa’d ibn Mu’adh) and I said, ‘O Jibril (Gabriel), what is it that made him deserve your prayers?’ He said, ‘It was his reading Chapter 112 ( al-‘Ikhlas ) standing, sitting, riding, walking, coming and going.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī