Sayyidah Asma (may Allah be pleased with her) says that a woman came to the Messenger of Allah (peace and blessings be upon him) and said: "I have a neighbour; will there be any sin on me if I make a display of things from my husband that I have not received?" She says: The Messenger of Allah (peace and blessings be upon him) said: "The one who makes a display of what she has not been given is like one who wears two garments of falsehood."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب القسم والنشوز / 14794