Hadith 2871 a - The Book of Paradise, its Description, its Bounties and its Inhabitants - Sahih Muslim - صحيح مسلم - Collection of Actions, Sayings and Teachings of Prophet Muhammad (صلى الله عليه و سلم) - Kutub as-Sittah

53. The Book of Paradise, its Description, its Bounties and its Inhabitants - كتاب الجنة وصفة نعيمها وأهلها

17) Chapter: The Deceased Is Shown His Place In Paradise Or The Fire; And Confirmation Of The Torment In The Grave - We Seek Refuge With Allah From That

Al-Bara' b. 'Azib reported Allah's Apostle (ﷺ) as saying:

This verse:" Allah grants steadfastness to those who believe with firm word," was rereaied in connection with the torment of the grave. It would be said to him: Who is your Lord? And he would say: Allah is my Lord and Muhammad is my Apostle (ﷺ), and that is (what is implied) by the words of Allah, the Exalted:" Allah keeps steadfast those who believe with firm word in this world and in the Hereafter."

Reference: 2871 a
English reference: Book 40, Hadith 6865
In-book reference: Book 53, Hadith 88
Grade: Sahih
Read this hadith from Darussalam Collection

17) بَاب عَرْضِ مَقْعَدِ الْمَيِّتِ مِنْ الْجَنَّةِ أَوْ النَّارِ عَلَيْهِ وَإِثْبَاتِ عَذَابِ الْقَبْرِ وَالتَّعَوُّذِ مِنْهُ

حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارِ بْنِ عُثْمَانَ الْعَبْدِيُّ، حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، عَنْ عَلْقَمَةَ بْنِ مَرْثَدٍ، عَنْ سَعْدِ بْنِ عُبَيْدَةَ، عَنِ الْبَرَاءِ بْنِ عَازِبٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ ‏"‏ ‏{‏ يُثَبِّتُ اللَّهُ الَّذِينَ آمَنُوا بِالْقَوْلِ الثَّابِتِ‏}‏ قَالَ ‏"‏ نَزَلَتْ فِي عَذَابِ الْقَبْرِ فَيُقَالُ لَهُ مَنْ رَبُّكَ فَيَقُولُ رَبِّيَ اللَّهُ وَنَبِيِّيَ مُحَمَّدٌ صلى الله عليه وسلم ‏.‏ فَذَلِكَ قَوْلُهُ عَزَّ وَجَلَّ ‏{‏ يُثَبِّتُ اللَّهُ الَّذِينَ آمَنُوا بِالْقَوْلِ الثَّابِتِ فِي الْحَيَاةِ الدُّنْيَا وَفِي الآخِرَةِ‏}‏ ‏"‏ ‏.‏