Sunan Ibn Majah, Volume 5, Book 37, Hadith 4110 (DarusSalam) ⓘ

It was narrated that Sahl bin Sa’d said: “We were with the Messenger of Allah in Dhul-Hulaifah, when we saw a dead sheep lifting its leg (because of bloating). He said: ‘Don’t you think this is worthless to its owner? By the One in Whose hand is my soul, this world is more worthless to Allah than this (dead sheep) is to its owner. If this world was worth the wing of a mosquito to Allah, the disbeliever would not have a drop to drink from it.’”

حَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ، وَإِبْرَاهِيمُ بْنُ الْمُنْذِرِ الْحِزَامِيُّ، وَمُحَمَّدُ بْنُ الصَّبَّاحِ، قَالُوا حَدَّثَنَا أَبُو يَحْيَى، زَكَرِيَّا بْنُ مَنْظُورٍ حَدَّثَنَا أَبُو حَازِمٍ، عَنْ سَهْلِ بْنِ سَعْدٍ، قَالَ كُنَّا مَعَ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ بِذِي الْحُلَيْفَةِ فَإِذَا هُوَ بِشَاةٍ مَيِّتَةٍ شَائِلَةٍ بِرِجْلِهَا فَقَالَ ‏ "‏ أَتُرَوْنَ هَذِهِ هَيِّنَةً عَلَى صَاحِبِهَا فَوَالَّذِي نَفْسِي بِيَدِهِ لَلدُّنْيَا أَهْوَنُ عَلَى اللَّهِ مِنْ هَذِهِ عَلَى صَاحِبِهَا وَلَوْ كَانَتِ الدُّنْيَا تَزِنُ عِنْدَ اللَّهِ جَنَاحَ بَعُوضَةٍ مَا سَقَى كَافِرًا مِنْهَا قَطْرَةً أَبَدًا ‏" ‏ ‏.‏