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.
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' said, 'The Prophet, may Allah bless him and grant him peace, waved
his hand to indicate the greeting to women."
(sic) Abu'z-Zinad said, "Kharija (ibn Zayd ibn Thabit) used to
write on the letter of Zayd when he said the salam, 'Peace be upon you,
Amir al-Mu'minin, and the mercy of Allah and His blessings and His forgiveness
and the best of His prayers."