Ismail bin Abdullah bin Ja'far says: It has reached me that the Messenger of Allah, peace and blessings be upon him, said: Whoever is in a gathering and, upon leaving the gathering, recites this supplication: Subhanak Allahumma wa bihamdika, la ilaha illa anta, astaghfiruka wa atubu ilayk (Glory is to You, O Allah, and with Your praise; there is no deity except You; I seek Your forgiveness and turn to You in repentance), then the sins committed in that gathering will be forgiven. When I narrated this hadith to Yazid bin Khusaifah, he said: Sayyiduna Sa'ib bin Yazid, may Allah be pleased with him, narrated to me a similar hadith from the Messenger of Allah, peace and blessings be upon him.