In The Name of Allah, The Most Merciful, The Bestower of Mercy.

Idris Bin Abdul Karim said: “Salamah Bin Aasim said to me: “I want to hear Kitaab Al-Adad from khalaf”. I said, “Khalaf?” He said: “Let him come”. When Khalaf entered, he tried to make Salamah sit in the teacher’s place, but he refused, and said: “I will not sit except in front of you”. Then he said, “This is the right of learning”. Khalaf  said to him: “Ahmad Ibn Hanbal came to me to listen to the narrations of Abu Awanah, so I tried make him sit and transmit, but he refused and said: “I will not sit except in front of you. We are commanded to be humble in the presence of the one from whom we learn”.

Al-Jaami Li-Akhlaaq Ar-Raawi Wa Aadaab As-Saami 1/198