The meaning of «al-Samad»

I heard Abu’l-Hasan, peace be upon him, when he was asked about al-Samad [1], to which he said: Al-Samad is He who has no interior.

I said to Abu Ja’far, peace be upon him: May I be sacrificed for you, what is al-Samad? He said: The Master to which one remains firm, during the less and the more (fortunate).

Al-Samad is He who has no interior, and al-Samad is He at whom sovereignty ends, and al-Samad is He who does not eat nor drink, and al-Samad is He who does not sleep, and al-Samad is He who has not perished and does not…