Abu Qurra al-Khurasani said, "I saw Anas pass by us and he indicated
to us with his hand that he was giving the greeting., The gesture made
that clear. I saw al-Hasan using yellow dye while wearing a black turban.
Asma'…
Sa'd reported that he went with 'Abdullah ibn 'Umar and al-Qasim
ibn Muhammad. They stopped at place and 'Abdullah ibn az-Zubayr commanded
and made a gesture of greeting to them and it was answered.