“A funeral (procession) passed by the Prophet ﷺ and they praised (the deceased) and spoke well of him. He said: ‘(Paradise is) guaranteed for him.’ Then another funeral passed by and they spoke badly of him, and he (the Prophet ﷺ) said: ‘(Hell is) guaranteed for him.’ It was said: ‘O Messenger of Allah, you said that (Paradise was) guaranteed for this one and that (Hell was) guaranteed for the other one.’ He said: ‘It is the testimony of the people, and the believers are the witnesses of Allah on earth.’” (Using translation from Ibn Mājah 1491)   

أَنَّهُ مُرَّ عَلَى النَّبِيِّ ﷺ بِجِنَازَةٍ فَأُثْنِيَ عَلَيْهَا خَيْرًا فَقَالَ وَجَبَتْ ثُمَّ مُرَّ عَلَيْهِ بِجِنَازَةٍ فَأُثْنِيَ عَلَيْهِ شَرًّا فَقَالَ وَجَبَتْ فَقِيلَ يَا رَسُولَ اللهِ قُلْتَ لِهَذِهِ وَجَبَتْ وَلِهَذِهِ وَجَبَتْ قَالَ شَهَادَةُ الْقَوْمِ وَالْمُؤْمِنُونَ شُهَدَاءُ اللهِ فِي الْأَرْضِ  

[Machine] I heard the Prophet ﷺ saying, "You will soon come to know the people of Paradise from the people of Hell, or he said, the best among you and the worst among you." It was said, "O Messenger of Allah, how can we know that?" He said, "By their good and bad praises (or by praising and blaming each other)."  

سَمِعْتُ النَّبِيَّ ﷺ بِالنَّبَاةِ أَوْ قَالَ النَّبَاوَةِ يَقُولُ تُوشِكُوا أَنْ تَعْرِفُوا أَهْلَ الْجَنَّةِ مِنْ أَهْلِ النَّارِ أَوْ قَالَ خِيَارَكُمْ مِنْ شِرَارِكُمْ قِيلَ يَا رَسُولَ اللهِ بِمَاذَا؟ قَالَ بِالثَّنَاءِ الْحَسَنِ وَالثَّنَاءِ السَّيِّئِ أَنْتُمْ شُهَدَاءُ بَعْضُكُمْ عَلَى بَعْضٍ