The Prophet ﷺ said, "Allah takes pride before His angels on the evening of Arafah in those who stand at Arafah. He says, 'Look at My servants, they have come to Me disheveled and dust-covered.'"
حدثنا أزهر بن القاسم حدثنا المثنى يعني ابن سعيد عن قتادة عن عبد الله بن باباه
أن النبي ﷺ كان يقول إن الله عز وجل يباهي ملائكته عشية عرفة بأهل عرفة فيقول انظروا إلى عبادي أتوني شعثا غبرا
Its chain of transmission is sahih. Muthanna bin Saeed Dubai Basri is trustworthy, Ahmad, Ibn Main, Abu Zura and others affirmed his reliability, and Bukhari gave his biography in al-Kabir 4/1/418. As for "Dubai," it is with the dad vowelled with damma, followed by ba, and then the unpointed ayn, a designation derived from Dubaya bin Qays bin Thalaba, and also a designation derived from the quarter inhabited by the Banu Dubaya in Basra, which others later settled and so were named after it. It appears that Muthanna was one of those who settled there. Bukhari said in al-Kabir, "It is said that he settled in Dubaya, though he was not one of them."As for Abdullah bin Baba, his reliability was established earlier at 5360, where we mentioned the various opinions about his father's name. This is a fourth opinion, "Baba" with alif but without a ha, as it is confirmed in the three original manuscripts here. In a copy noted in the margin of L and M it appears as "Babay" with a ya, and in another noted in the margin of M it appears as "Babah" with a ha after the alif.Haythami mentioned this hadith in Majma al-Zawaid 3:251-252, and said, "Ahmad and Tabarani related it in al-Saghir and al-Kabir, and the men of Ahmad's version are trustworthy." Something similar in meaning will come later from the hadith of Abu Hurairah, 8033.As for "ashath," with the shin vowelled with damma, then a silent unpointed ayn, then tha with three dots, it is the plural of ashath, meaning one whose head is dusty and whose hair is disheveled, one who goes barefoot and has not used oil.