It is reported that the son of Al-Fudayl b. ‘Ayyâd – Allâh have mercy on him – said to his father:

Father! How sweet (beautiful) the speech of the Companions is! [Al-Fudayl] said, “Son, do you know why it was so sweet?” He replied, “No father, I do not.” He said, “Because they sought Allâh the Exalted when they spoke.”

Al-Bayhaqî, Shu’ab Al-îmân 2:299