It is narrated from Umm al-Mu'mineen Sayyidah Aisha (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) said: "The thief's hand will be cut off for a quarter of a dinar or more."
Hadith Referenceالسنن المأثورة / باب الحدود / 530
Hadith Takhrijصحیح مسلم، الحدود، باب حد السرقة ونصابھا، رقم: 1684