The Mother of the Believers Sayyidah Aishah (may Allah be pleased with her) narrates that the Messenger of Allah (peace and blessings be upon him) said: "Do not impose anything upon me (regarding what is lawful and unlawful), for I declare lawful only what Allah has made lawful in His Book, and I declare unlawful only what Allah has made unlawful in His Book."
Imam al-Tabarani (may Allah have mercy on him) said: "Only Ali bin Asim narrated this hadith from Yahya bin Sa'id; al-Za'farani is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الميم / 5741
Hadith Gradingمحدثین:تفرد به صالح بن الحسن الزعفراني، وفيه من لم يُترجم
Hadith Takhrij«قال الهيثمي: لم يروه عن يحيى بن سعيد إلا علي بن عاصم تفرد به صالح بن الحسن بن محمد الزعفراني قلت ولم أر من ترجمهما «مجمع الزوائد ومنبع الفوائد، ج 1، ص 172»»