Abdullah bin Abi Mulaykah narrates from Sayyidah Aishah (may Allah be pleased with her) that she said: Nothing was more hateful to the Prophet (peace and blessings be upon him) than lying. When the Messenger of Allah (peace and blessings be upon him) came to know of a lie from someone, he (peace and blessings be upon him) would not turn back to him (as before) until he came to know of his repentance.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / 20822