Sayyiduna Uqbah bin Amir (may Allah be pleased with him) says that he heard the Prophet (peace and blessings be upon him) say: "On the Day when mouths are sealed, the first bone of a person to speak will be the thigh of the left leg."
Imam Ahmad and Imam al-Tabarani recorded it, and the chains of both are jayyid (good).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب البعث / 18399
Hadith Gradingمحدثین:إسنادہ جید
Hadith Takhrij«اخرجه الطبراني فى المعجم الكبير (333/17) اخرجه احمد فى المسند (151/4) ، أخرجه مسند أحمد برقم: 16923»