Pledge of Allegiance to Hazrat Abu Bakr (ra) (The Promised Messiah’s (as) Narration)
In regard to Hazrat Ali (ra), the Promised Messiah (as) states:
“Hazrat Ali (ra) initially held back from taking the bai‘at of Hazrat Abu Bakr (ra). However, upon reaching home, only Allah knows what thought crossed his mind that he immediately left without even putting on his turban and simply covered his head with a cap and came to perform the bai‘at. It was only later that he called for his turban to be brought. It seems that he deemed this to be a grave sin and thus left in such a hurry that he did not even tie his turban.”
(Malfuzat, Vol. 10, p. 183, 1984 Edition)
In other words, he did not even fully dress and came at once.