‏صفات المنافقين وأحكامهم‏ : Hadeeth No:6689 Qais b. 'Ubad reported: We said to 'Ammar: Was your fighting (on the side of 'Ali in the Battle of Siffin) a matter of your own choice or you got its hints from Allaah's Messenger (sallAllaahu alayhi wa sallam) for it, is likely for one to err in one's own discretion or was it because of any covenan...

‏الفضائل : Hadeeth No:5741 This hadith had been narrated on the authority of al-A'mash through another chain of transmitters also....