البر والصلة والآداب : Hadeeth No:6211
This hadith has been transmitted on the authority of Zuhri with a slight variation of wording (and the words are):" The one turning away and the other turning away when they meet and one avoids the other and the other also avoids him."...
الصيام : Hadeeth No:2515
Abd al-Rahman reported that he heard Mu'awiya b. Abu Sufyan delivering a sermon in Medina. i. e. when he came there (for Hajj). He delivered a sermon on the day of 'Ashura and said: People of Medina, where are your scholars? I heard the Messenger of Allaah (sallAllaahu alayhi wa sallam) say on this ...