We were with the Messenger of Allah ﷺ at Dhul Hulayfah when he came upon a dead sheep with its leg raised in the air. He said, "Do you see how worthless this is to its owner? By the One in whose hand my soul rests, this world is more worthless to Allah than this carcass is to its owner. If this world were worth the wing of a mosquito to Allah, He would never have given a disbeliever even a single sip of water from it."
كنا مع رسول الله ﷺ بذي الحليفة، فإذا هو بشاة ميتة شائلة برجلها، فقال: أترون هذه هينة على صاحبها؟ فوالذي نفسي بيده! للدنيا أهون على الله من هذه على صاحبها، ولو كانت الدنيا تزن عند الله جناح بعوضة، ما سقى كافرا منها قطرة أبدا.
Ibn Majah (4110) and Hakim (4/306) both narrated it through chains going back to Abu Yahya Zakariya bin Manzur, who said, "Abu Hazim narrated to us, from Sahl bin Saad," and he related it. Zakariya bin Manzur is al-Qurazi al-Madani, and he is daif, but he has been corroborated.Tirmidhi (2320) narrated it through Abdul-Hameed bin Sulayman, and Tabarani in Mujam al-Kabir (6/219) narrated it through Zama bin Salih, both of them (Abdul-Hameed and Zama) narrating from Abu Hazim, from Sahl bin Saad, and he related it. Abdul-Hameed bin Sulayman and Zama bin Salih are both daif, but with these corroborations the hadith rises to the level of hasan.