And some of the expressors said that hiccups indicate the commission of an order in which there is a heresy, and the one who intends it intends to reverse that. As for whistling, it is not praiseworthy, as it indicates the forbidden and cutting off the road and for the rich to worry and distress, and it may be committing something that is not necessary, and as for singing, if it is a good voice, it indicates a profitable business if it is not A good voice is a losing business .