Sayyidah Aishah Siddiqah (may Allah be pleased with her) and Sayyidah Asma' (may Allah be pleased with her) said: Our mother came to us in Madinah while she was a polytheist. This was in the time after the truce that was made between the Prophet (peace and blessings be upon him) and Quraysh. We said: "O Messenger of Allah! Our mother has come to us, and she is hoping (for our kindness). Should we treat her well?" The Prophet (peace and blessings be upon him) said: "Yes! Treat her well." (Allamah al-Haythami says:) I say: The hadith of Sayyidah Asma' (may Allah be pleased with her) is in the Sahih.
Al-Bazzar recorded it from his teacher Abdullah bin Shabib, who is da'if (weak).