Sayyiduna Anas (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) said: "You will not find the sweetness of faith until you love a person only for the sake of Allah, until being thrown into the Fire is dearer to you than returning to disbelief after Allah has saved you from it, and until Allah and His Messenger are dearer to you than everything besides them."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / 21063