The Messenger of Allah ﷺ recited "And warn them of the Day of Regret" [Maryam 19:39] and said, "Death will be brought forth in the form of a speckled ram and made to stand upon the wall between Paradise and Hell.It will be said, 'People of Paradise!' and they will stretch their necks to look.Then it will be said, 'People of Hell!' and they too will stretch their necks to look.It will be said, 'Do you recognize this?'They will reply, 'Yes, this is death.'Then it will be laid down and slaughtered. Were it not that Allah has decreed eternal life for the people of Paradise, they would die of joy, and were it not that Allah has decreed eternal life for the people of Hell, they would die of grief."
حدثنا أحمد بن منيع حدثنا النضر بن إسمعيل أبو المغيرة عن الأعمش عن أبي صالح
قرأ رسول الله ﷺ {وأنذرهم يوم الحسرة} قال يؤتى بالموت كأنه كبش أملح حتى يوقف على السور بين الجنة والنار فيقال يا أهل الجنة فيشرئبون ويقال يا أهل النار فيشرئبون فيقال هل تعرفون هذا فيقولون نعم هذا الموت فيضجع فيذبح فلولا أن الله قضى لأهل الجنة الحياة فيها والبقاء لماتوا فرحا ولولا أن الله قضى لأهل النار الحياة فيها والبقاء لماتوا ترحا
[Its chain is daif]. Nadr bin Ismail is not strong (Taqrib). The basis of the hadith is found in Bukhari, no. 4730, without his saying, "until they are made to stand at the wall between Paradise and the Fire, and it is laid down... for had Allah not decreed for the people of Paradise..." to the end.