If you cast a spell from a magic item, is concentration required?

@JeremyECrawford if you cast a spell from a magic item, is concentration required to maintain the spell or is it maintained by the item?

— This Quest Sucks (@heroskulls) December 20, 2016

In the magic item rules, see the section "Spells" (DMG, 141) for the rules on casting spells from magic items. #DnD https://t.co/UNXeDNrI89

— Jeremy Crawford (@JeremyECrawford) December 21, 2016