Sayyiduna Anas bin Malik (may Allah be pleased with him) says that when Sayyiduna Haram bin Milhan (may Allah be pleased with him), who was his maternal uncle, was struck with a spear on the day of Bi'r Ma'unah, as the blood flowed he smeared it over his face and head and said: "By the Lord of the Ka'bah, I have succeeded."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجزية / 18823