Riyad as-Salihin, Book 12, Hadith 1331 (In-Book) ⓘ
Abu Mas'ud (May Allah be pleased with him) reported: A man came to the Prophet with a she-camel wearing a nose-string and said: "This is (a gift) in the Cause of Allah." The Messenger of Allah replied, "You will have in return for it on the Day of Resurrection seven hundred she-camels and every one of them will be wearing a nose-string."[Muslim].
وعن أبي مسعود رضي الله عنه قال: جار رجل إلى النبي صلى الله عليه وسلم بناقة مخطومة فقال: هذه في سبيل الله، فقال رسول الله صلى الله عليه وسلم: "لك بها يوم القيامة سبعمائة ناقة كلها مخطومة" ((رواه مسلم)).