Sayyiduna Abdullah bin Amr (may Allah be pleased with him) narrates: Sayyidah Umaymah bint Raqiqah (may Allah be pleased with her) came to the Prophet (peace and blessings be upon him) to accept Islam. The Prophet (peace and blessings be upon him) said: "I take your pledge that you will not associate anyone with Allah, you will not steal, you will not commit fornication, you will not kill your children, you will not bring forth a slander invented by yourself (that is, a false accusation), you will not wail over the dead, and you will not display your adornment like the display of the time of Ignorance."
Al-Tabarani recorded it, and its narrators are thiqat (trustworthy).