What did the Messenger of Allah (peace be upon him) prohibit when it came to fasting on 'Id-ul-Adha and 'Id-ul-Fitr?
 Abu Huraira (Allah be pleased with him) reported that the Messenger of Allah (may peace be upon him) forbade to observe fast on these two days. 'Id-ul-Adha bi and 'Id-ul-Fitr.