Wearing white garments is indicative of soundness in one’s religious and worldly affairs, except for people with do (dirty) jobs such asslaughtermen, cooks, those who press olive oil and so on; if they wear white garments it is indicative of loss of livelihood, because they only wear them when they are not working.
If it is worn by the Khateebs at the time of delivering the Khutbah,that is a bad sign, because it is indicative of losing their positions. Bythe same token, if they wear black at the time of delivering the Khutbah,that is a good sign.
But wearing black for people who are not used to itis a sign of worry or grief.To sum up: if a person wears garments that are befitting for him, that is good for him; if he wears garments that are not befitting for him, that is indicative of a bad reputation and loss of his position.