Which side of the bier to begin with when carrying

Ali al-Azdi said: I saw Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) at a funeral. The people carried the bier by its four sides, and he began by giving his shoulder on the right side first; then he moved away from it, but stayed close and did not go far.

Al-Hasan said: "There is no harm in beginning from whichever side of the bier you wish."

Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) said: "If one has the ability and strength, let him begin with the right side of the bier (its legs), then go around the bier; otherwise, stay close to it."

Ja'far bin Iyas said: I saw al-Hasan following a funeral, carrying it. He placed the bier on his left shoulder, then turned and placed the front of the bier on his right shoulder, then came back and placed the rear of the bier on his right shoulder, then turned again and placed the rear of the bier on his left shoulder, then left it (for others).