Al-Zubayr ibn Abdul Wahid reported: Abu al-Hasan Bunan, may Allah have mercy on him, said, “The freeman is a slave as long as he is greedy, and the slave is free as long as he is content.”
Source: Siyar A’lām al-Nubalā’ 11/300
عَنْ الزُّبَيْر بن عَبْدِ الوَاحِدِ قَالَ أَبُو الحَسَن بُنَان رحمه الله الحُرُّ عَبْدٌ مَا طَمِعَ وَالعَبْدُ حُرٌّ مَا قَنِعَ
11/300 سير أعلام النبلاء الذهبي