Al-Imām al-Bukhārī relates: Ismā’īl narrated to us. He said: My brother narrated to me, from Ibn Abī Dhi’b, from Sa’īd al-Maqburī

from Abū Hurayrah (may Allāh Almighty be content with him). He said: I have preserved from the Messenger of Allāh ﷺ two vessels (of knowledge). As for one of them, I have propagated it. As for the other, if I were to propagate it, this throat of mine would be cut. He said: Ibn Abī Fudayk narrated to us the same (ḥadīth).

Abū ‘Abdullāh (al-Imām al-Bukhārī) said: “Al-bal’ūm” is the passage through which food passes (i.e. the throat).