English translation
4666. It was narrated that Qais bin 'Ubād said: "I said to 'Ali: 'Tell us about this march of yours (against Mu'awiya). Did the Messenger of Allāh ﷺ enjoin it upon you, or is it your own opinion?' He said: 'The Messenger of Allāh ﷺ did not enjoin anything upon me; rather it is my own opinion.'" (Sahih)
