After interpreting the verse “Do not hold the Messenger’s calling (you) among you to be like your calling one to the other” (24; 63), Abū Lays (may Allah have mercy upon him) said:
“We also understand from this verse that we should show respect to the teachers. It’s been pointed out that the rights of the teachers and virtuous people should be observed.
This is why when their names are mentioned, and the language does not matter, we should also say things to show our respect. Since we are prohibited to call our biological fathers with their names, think about how disrespectful to specify our spiritual fathers’ names.”
(Ruḥ al-Bayān, VII, 447)