The Office of the Judge (Kitab Al-Aqdiyah)
Dawud :: Book 24 : Hadith 3621
Narrated Ash-Sharid:
The Prophet (peace_be_upon_him) said: Delay in payment on the part of one who possesses means makes it lawful to dishonour and punish him. Ibn al-Mubarak said that "dishonour" means that he may be spoken to roughly and "punish" means he may be imprisoned for it.