Sayyiduna Abu Umamah al-Bahili (may Allah be pleased with him) said: One day the Messenger of Allah (peace and blessings be upon him) was with Sayyidah Aishah (may Allah be pleased with her), and a slave-girl of hers, or a freed slave-woman, came to her with some tharid and said: Eat this, my lady; its fragrance pleased me greatly. Sayyidah Aishah (may Allah be pleased with her) said: Take it away from me. Then she adjured her by an oath, and Sayyidah Aishah (may Allah be pleased with her) said again: Take it away from me. The Messenger of Allah (peace and blessings be upon him) said: "If you make her break her oath, its sin will be upon you."
Hadith Referenceالمعجم الكبير للطبراني / باب الصاد / 7789