Is there any hadith from Ahleibayt which in clear words rejects – slavery in Islam?

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The Hadith that comes to mind is from Imam Ali (as):

“ Do not be slave to others when Allah created you free”

Is there any hadith from Ahleibayt which in clear words rejects – slavery in Islam?

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Slavery was slowly eradicated by Islam throughout life of Ahlulbayt as society very much depended on it that time