Obey Islamic laws & regulations ; Refrain from consuming alcohol & eating pork ; Stay away from idol worshiping etc..

This hadith is about the prohibitions that were revealed to Prophet Muhammad by Allah. It is narrated by Jabir bin 'Abdullah who said that during the Year of Conquest he heard Prophet Muhammad say that Allah and His Messenger have made unlawful the sale of wine, dead carcasses, pork and idols. People asked what about fat from dead animals as it was used to coat ships or oil skins or used as lamps? To this question Prophet Muhammad replied in negative saying it is unlawful too. He then cursed Jews for melting fat from animals, selling it and consuming its price which was made unlawful for them by Allah. This hadith teaches us to stay away from things which are forbidden in Islam such as alcohol consumption or eating pork etc., even if they seem beneficial in some way because these things are not permissible according to Islamic teachings. We should also be careful while dealing with money earned through haram means like selling alcohol or pork etc., because this will lead us towards sinning against Allah's commands which should be avoided at all costs.