Sayyiduna Abu Umamah (may Allah be pleased with him) narrates from the Prophet (peace and blessings be upon him) that the Prophet (peace and blessings be upon him) said: "Whoever consumes the property of a Muslim brother by means of an oath, Allah has made Paradise forbidden for him and made Hell obligatory for him." They said: Even if it is something small? He (peace and blessings be upon him) said: "Even if it is a twig of an arak tree." He (peace and blessings be upon him) said it three times.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الشهادات / 20710