355.Narrated Abu Wail (Allah be pleased with him): Abdullah used to give religious talk to the people on every Thursday. Once a man said, "O Aba Abdur-Rahman! (By Allah) I wish if you could preach us daily." He replied, "The only thing which prevents me from doing so, is that I hate to bore you, and no doubt I take care of you in preaching by selecting a suitable time just as the Prophet (peace be upon him) used to do with us, for fearing of making us bored."
(Sahih Al-Bukhari Vol 1).
(Dr. Muhammad Muhsin Khan et.al.).