Sayyiduna Sahl bin Sa'd (may Allah be pleased with him) said: "The Messenger of Allah (peace and blessings be upon him) married a man to a woman for a dowry of an iron ring whose stone was of silver."
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 5816
It is narrated from Sayyiduna Sahl bin Sa'd (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) passed by a dead goat and said: "Do you see how worthless this is to its owners?" The Companions said: O Messenger of Allah, it is only a dead goat. He (peace and blessings be upon him) said: "By Allah, the world is even more worthless to Allah than this is to its owners."
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 5817