Sahih Muslim
Sahih Muslim 142e
وَحَدَّثَنَا شَيْبَانُ بْنُ فَرُّوخَ، حَدَّثَنَا أَبُو الأَشْهَبِ، عَنِ الْحَسَنِ، قَالَ عَادَ عُبَيْدُ اللَّهِ بْنُ زِيَادٍ مَعْقِلَ بْنَ يَسَارٍ الْمُزَنِيَّ فِي مَرَضِهِ الَّذِي مَاتَ فِيهِ فَقَالَ مَعْقِلٌ إِنِّي مُحَدِّثُكَ حَدِيثًا سَمِعْتُهُ مِنْ رَسُولِ اللَّهِ صلى الله عليه وسلم لَوْ عَلِمْتُ أَنَّ لِي حَيَاةً مَا حَدَّثْتُكَ إِنِّي سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ " مَا مِنْ عَبْدٍ يَسْتَرْعِيهِ اللَّهُ رَعِيَّةً يَمُوتُ يَوْمَ يَمُوتُ وَهُوَ غَاشٌّ لِرَعِيَّتِهِ إِلاَّ حَرَّمَ اللَّهُ عَلَيْهِ الْجَنَّةَ " .
Shayban ibn Farrukh narrated to us; Abu al-Ashhab narrated to us, from al-Hasan, who said: Ubayd Allah ibn Ziyad visited Maqil ibn Yasar al-Muzani during the illness in which he died. Maqil said: “I will relate to you a report that I heard from the Messenger of Allah, peace and blessings be upon him. If I knew that I would survive, I would not relate it to you. I heard the Messenger of Allah, peace and blessings be upon him, say: If Allah entrusts a people to a servant as their shepherd, and he dies on the day he dies while deceiving his flock, Allah will forbid Paradise to him.”