I was present at the residence of al-Ridha, ‘Ali ibn Musa, peace be upon him, at Khurasan, and a group of Banu Hashim, including Ishaq ibn al-Abbas ibn Musa, was present also. So, addressing Ishaq, (al-Ridha) said: "O Ishaq! I have come to learn that you are telling people that we consider them as our slaves. I swear by my relation with the messenger of Allah, peace be upon him and his progeny, I have never said that! Nor did I hear to that effect from my forefathers, nor has it been conveyed to me from them through anyone. Yes, what we have said is that people are subservient to us in matters of obedience to Allah, loyal to us in religion. So let those present here convey this to those who are absent."