It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that indeed the Prophet (peace and blessings be upon him) said: "Whoever goes to a food invitation while he was not invited to it, then indeed he enters as a thief and leaves as a bandit."
Hadith Referenceمسند الشهاب / 527
Hadith Gradingمحدثین:إسناده ضعیف
Hadith Takhrijإسناده ضعیف، ابان بن طارق مجہول اور درست بن زیادہ ضعیف ہے ۔