Bustam bin Muslim said: When someone walked behind Imam Muhammad bin Sirin (may Allah have mercy on him), he would stand up and say: Do you need anything? If the person had a need, he would fulfill it. Even then, if the person continued to walk behind him, he would ask: Is there any other need?
Hadith Takhrijاس روایت کی سند صحیح ہے۔ دیکھئے: [حلية الأولياء 267/2]
Brief Explanation
(Commentary on Hadiths 540 to 542)
That is, he did not like anyone to walk behind him. This is an admonition for those people who desire that others should walk before and behind them as attendants.